Lewis Hamilton remained on top at the Russian GP in Practice Three after a session-long battle for supremacy with Nico Rosberg, setting up the likelihood of a closely-fought all-Mercedes duel for pole.The triple world champion had set the Friday pace but came under renewed attack from Rosberg on Saturday morning as the Mercedes W07 again proved untouchable around the Sochi Autodrom. Trading fastest times on the supersoft tyres throughout the hour-long session, Hamilton usurped Rosberg in the closing minutes via a best lap of 1:36.403.However, the championship-leading Rosberg remained just 0.068s adrift in the final reckoning, despite making several errors during the session as drivers again struggled for grip.That is a very close battle between Hamilton and Rosberg, said Sky Sports F1 commentator David Croft. It seems as though the Mercedes are going to be going for pole themselves. Ferraris Sebastian Vettel narrowly avoids colliding into the Mercedes of Lewis Hamilton in the pitlane during P3 in Sochi. Despite introducing an upgraded engine this weekend, Ferrari have yet to show they are capable of taking it to the world champions on outright pace and finished P3 in familiar third and fourth positions.But the team already know they will not lock out the second row on Sundays grid after a five-place gearbox change penalty was confirmed for Sebastian Vettel on Friday night.When is Russian GP Qualy and Race?The German finished third, six tenths back on Hamilton, having spent the start of the session on heavier-fuel long runs with 20 laps on used supersoft tyres.Once onto shorter runs, Vettel was twice frustrated by the sister Ferrari of Raikkonen - with the German waving a hand in his team-mates direction after being overtaken near the pits.And then Vettel had to have his wits about him when leaving the Ferrari garage when a mechanic inadvertently waved him into the path of an oncoming Hamilton. Behind the established top two teams, Williams appear primed for a more competitive weekend with Felipe Massa and Valtteri Bottas finishing in fifth and sixth positions respectively.With Red Bull - the third-fastest team so far this season - not faring as well in P3, Max Verstappen was seventh for sister team Toro Rosso, while eighth-fastest Jenson Button gave McLaren-Honda hope that this could be the weekend they finally break their long Q3 duck.Practice Three timesheet1. Lewis Hamilton, Mercedes, 1:36.4032. Nico Rosberg, Mercedes, 1:36.4713. Sebastian Vettel, Ferrari, 1:37.0074. Kimi Raikkonen, Ferrari, 1:37.7275. Felipe Massa, Williams, 1:37.9186. Valtteri Bottas, Williams, 1:37.9857. Max Verstappen, Toro Rosso, 1:38.1338. Jenson Button, McLaren, 1:38.2609. Carlos Sainz, Toro Rosso, 1:38.46510. Sergio Perez, Force India, 1:38.54211. Daniel Ricciardo, Red Bull, 1:38.62212. Fernando Alonso, McLaren, 1:38.63313. Daniil Kvyat, Red Bull, 1:39.04714. Nico Hulkenberg, Force India, 1:39.16215. Esteban Gutierrez, Haas, 1:39.23016. Kevin Magnussen, Renault, 1:39.23817. Romain Grosjean, Haas, 1:39.23918. Jolyon Palmer, Renault, 1:39.58919. Rio Haryanto, Manor, 1:39.59920. Pascal Wehrlein, Manor, 1:39.66321. Marcus Ericsson, Sauber, 1:39.74022. Felipe Nasr, Sauber, 1:39.898Watch the whole Russian GP weekend - LIVE ONLY on Sky Sports F1. The race begins at 1pm on Sunday, with build-up from 11.30am. Or watch the race without a contract for £6.99 on NOW TV. Also See:Five-place penalty for VettelWhen is the Russian GP on Sky?Tyler Toffoli Jersey . Q: Team Canada announces their Olympic roster three weeks from today. Who is general manager Steve Yzerman watching? LeBrun: Over the last 48 hours, hes taken in the home-and-home between the Dallas Stars and Colorado Avalanche with Jamie Benn and Matt Duchene being the obvious targets. 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Kurtis MacDermid Jersey .1 million pounds ($61.2 million) on Saturday, giving the beleaguered English Premier League champions a major lift.TORONTO -- The schedule does not get any easier for the Toronto Raptors after they took a hard-fought 121-117 loss to the NBA champion Cleveland Cavaliers on Tuesday.The Raptors, who dropped the Eastern Conference final to the Cavaliers last season, returned home Wednesday to face the Golden State Warriors at Air Canada Centre.The Warriors were NBA finalists last season, losing a seven-game series to Cleveland after winning the championship the season before.The computer that spit out the schedule, Im going to find it and break it, Raptors coach Dwane Casey said.The Raptors (7-3) also lost to the Cavaliers 94-91 at the ACC in their second game of the season, Oct. 28.Casey feels the games are too early in the season to draw conclusions.Its good for us; its not a measuring stick, Casey said. I think were still trying to get our rotations down as far as what we want to do in certain situations, who we want to guard, who can do what in certain situations. (We are) still trying to figure those things out a little bit. Its that part of the year. Id rather go ahead and get these (games against) two of the best teams in the league in now and go from there.The Warriors arrived in Toronto on a four-game winning streak in which they outscored the other teams by a total of 68 points.Golden State (8-2) faces a test of its own on a four-game trip that opens in Toronto and is followed with visits to the Boston Celtics, Milwaukee Bucks and Indiana Pacers in a six-day span. The four Eastern Conference teams have a combined record of 22-18.The challenge gets bigger now, Warriors coach Steve Kerr said. Were playing playoff teams on the road, East Coast and all of that.dddddddddddd Its not going to be easy, but its coming at a good time, and were going to embrace it.Stephen Curry said, Obviously on the road, itll expose us to different challenges and well see where we are. I think were ready for it.Curry remains the catalyst for the Warriors even with the addition this season of Kevin Durant.(Curry) kind of gets us started almost every game, Durant said, when we need an extra surge of energy, coming down to make shots. But also making the right play, scramble for guys. Hes just doing it all to be a complete player.Raptors point guard Kyle Lowry, who had 28 points and nine assists Tuesday, said he took no solace in being a tough opponent for the Cavaliers.Im not encouraged by any loss, Lowry said. We want to win every single game.Raptors shooting guard DeMar DeRozan failed to score 30 points for only the second time this season when he was held to 26 on Tuesday. DeRozan has been the main story on the Raptors this season.He is mature, Casey said. Hes a man now, as opposed to a kid getting beat up in those situations, and the officials respect him now; whereas, three or four years ago they probably would let the veterans get away with a lot of stuff. The game has slowed down for him, and I see that as being the biggest change for him.Toronto forward DeMarre Carroll did not play for the second game in a row Tuesday as he continues to come back from right knee surgery. ' ' '