MELBOURNE, Australia - Mercedes confirmed its status as favourite to win the Formula One season-opening Australian Grand Prix by setting the fastest two times in Fridays practice sessions, with Lewis Hamilton edging his teammate Nico Rosberg. Hamilton failed to complete a lap in the opening practice session due to a malfunctioning oil pressure sensor that shut down his engine, but recovered to set a time of 1 minute 29.625 seconds in the second session around the Albert Park circuit, 0.157 seconds ahead of Rosberg. "That was quite satisfying. On one lap the pace was good, and on the long run, as well," Mercedes team principal Toto Wolff said. He added, however, that Hamiltons early problem meant there is still cause for concern. "You need to be very careful because its enough to have a little problem and the race or qualifying could be finished." Fernando Alonso of Ferrari was fastest in the first session but dropped to third in the second, half a second off Hamiltons time. Kimi Raikkonen was only seventh fastest in his return to the Italian team after suffering some problems, including failing to select first gear when trying a practice start. "Were still not on top of all the things we need to resolve," Ferrari team principal Stefano Domenicali said. "The negative sides have to be addressed very quickly because the competition is strong and the time available is not very much." The gaps at the top of the timesheets were reasonably close, which points toward a competitive qualifying session on Saturday and race on Sunday, rather than the Mercedes dominance that many had predicted. Red Bulls Sebastian Vettel was tipped to struggle in his campaign for a fifth straight drivers championship due to his teams preseason struggles with Renaults new V6 turbo engine, but he put in an encouraging performance to finish fourth fastest in practice. Vettel and new teammate Daniel Ricciardo — who was sixth fastest — completed a total of 115 laps, which will provide valuable data on the car and engines performance. "Its been a very strong first day for us," Red Bull team principal Christian Horner said. "Weve had a very difficult preseason with numerous issues so it was refreshing to get some laps in and get a first proper feel for the car. "We can see there is quite a gap to the Mercedes and the Ferrari, but we are starting to feel what that gap is and by the end of the weekend we will have a clearer idea." By contrast, fellow Renault-powered teams Lotus and Caterham did very little running due to a succession of technical problems, coupled with some spins into the gravel traps by Lotus drivers Romain Grosjean and Pastor Maldonado. There has been concern that these two teams, and perhaps others, will sit out Saturdays final practice session to avoid encountering a problem that takes a long time to fix — as many do with these new complex engines — and therefore having to miss both qualifying and the race. Renault deputy managing director Rob White admitted the company was way behind schedule in integrating the complex new powertrains to its four customer teams. "Its completely unacceptable to come to the first race as relatively unprepared as we are," White said. McLaren driver Jenson Button was fifth fastest in Fridays practice, while his rookie teammate Kevin Magnussen was ninth. Williams driver Valtteri Bottas was eighth, four places above his experienced new teammate Felipe Massa in 12th. Force Indias Nico Hulkenberg rounded out the top ten. Authentic Gary Trent Jr. Jersey . The England international raised his middle finger toward Manchester City supporters during Saturdays game at Etihad Stadium, which Arsenal lost 6-3. The incident was not seen by match officials at the time but the FA charged Wilshere retrospectively after a study of video footage. Authentic Zach Collins Jersey . “Im not sure well get Melky Cabrera at all,” said Gibbons. The 29-year-old left fielder struggled all season with knee and hamstring problems. Cabrera was first on the disabled list from June 27-July 20 with tendinitis in his left knee. http://www.cheapblazersjerseysauthentic.com/?tag=authentic-moe-harkless-jersey . Kelli Stack and Alex Carpenter also scored for the Americans, who avoided a repeat of Finlands upset at the Four Nations Cup in Lake Placid, N.Y., in November. Finnish goalie Noora Raty made 58 saves in that one, but the three-time Olympian could stop just 40 of 43 U. Authentic Bill Walton Jersey .C. -- Kevin Harvick won his first career pole at Darlington Raceway on Friday as he looks to chase his first Southern 500. Authentic Jusuf Nurkic Jersey . He left in the 4th inning of Saturdays game against the Tigers after experiencing tightness. Reyes and the team still hope that he will be ready for Opening Day in Tampa Bay in one week.SANTA CLARA, Calif. -- Eric Wright was joined by a handful of players who were able to participate in practice for the first time on Tuesday. Wright, who grew up in San Francisco and attended Riordan High, less than five miles from Candlestick Park, was originally traded to the 49ers by the Tampa Bay Buccaneers in late July, a few weeks after he was arrested for a DUI. He failed his physical and the trade was nullified. He eventually signed on as a free agent and placed on the reserved/non-football injury list. "It felt good just to be able to practice, put a helmet on and communicate with my teammates," Wright said. "Its a lot different than looking at a piece of paper or watching film. The reps mean a lot." He was also joined by veteran wide receiver Mario Manningham and rookie defensive linemen Tank Carradine and Quinton Dial. Wright, in his seventh season in the NFL, said there were no health issues that would keep him off the field. "No one wants to miss a lot of time but to go back out there with a healthy body is really not normal," Wright said. "Its a different experience and Im happy I am healthy at this time of the season after taking a beating for years." Wright has 14 career interceptions, returning two for touchdowns, including a 94-yard return with the Browns. "Im just grateful to be playing for the team I grew up watching," Wright said. "Im able to live out my dream." Manningham can add depth to a thin position for the 49ers, who have been without former No. 1 draft pick Michael Crabtree. "Im just trying to get my confidence back," Manningham said. "Im learning the routes, trying to keep my quickness and get separation from the defenders. Im doing everything I can to get back to 100 per cent.dddddddddddd" Manningham suffered a torn ACL in his knee near the end of last season, two weeks after he returned from a shoulder injury. He threw his crutches away a while ago and refuses to think about them, or the knee. "Im trying to keep a positive attitude," he said. "About my knee and being a good team player. Ive stayed in touch with what the team is doing." Manningham thinks hell return stronger than when he left. Thats because he had nothing else to do during his rehab but to build muscle throughout his body. "Im going to ease into it," said Manningham, who has 202 career receptions in three years with the New York Giants and one with the 49ers. "Im not going to put a timetable on it. I havent put it all together yet. By the time I step out there Sunday Ill be 100 per cent. I dont know which Sunday." Carradine and Dial both came to training camp with injuries. The 49ers have a three-week window to decide whether to add any or all of the four players to their 53-man roster. NOTES: Defensive lineman Glenn Dorsey, who left Sundays game against the Arizona Cardinals with a right hamstring strain, reported feeling better on Tuesday. "It felt pretty bad when I did it," he said. "But Ill be all right. The MRI was cool." ... Guard Mike Iupati said Sundays 18-play, 89-yard drive in the fourth quarter was about "executing plays. It wasnt like we had a lot of big plays. We just moved the ball." Iupati said RB Frank Gore was an inspiration for the offensive line during the drive. "You want to open those holes for me because he runs so hard." ... The 49ers last beat the Tennessee Titans in 1999, though theyve played just twice since then. 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