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• F1: Mercedes' Brawn needs brains to avoid tire trouble

  Mercedes principal Ross Brawn, a past master at finding Formula One loopholes, may need to pull another rabbit from his magician's hat on Thursday if his team are to escape potentially heavy sanctions.

• IndyCar: Andretti sets qualifying mark at Milwaukee

  Marco Andretti won the pole for the Milwaukee IndyFest race with a record two-lap qualifying speed of 170.515 mph on Friday (Saturday, PHL time) in West Allis, Wis.

• F1: Renault set to power four teams next season

  Renault is expected to power four Formula One teams next season with Red Bull's two confirmed and Caterham and Lotus set to renew soon, Renault Sport F1 director Jean-Michel Jalinier said on Thursday (Friday, PHL time).

• Pirelli to keep F1 tires unchanged for now

  Pirelli have ruled out changing the construction of their Formula One tires until at least August due to teams failing to reach agreement at last week's Canadian Grand Prix.

• NASCAR driver Jason Leffler killed in New Jersey sprint car race crash

  The NASCAR world is mourning the death of driver Jason Leffler, who was killed Wednesday night (Thursday, PHL time) in a crash in a dirt car event at the 5/8-mile, high-banked Bridgeport (N.J.) Speedway oval.

• F1: Vettel staying with Red Bull to end of 2015

  Triple Formula One world champion Sebastian Vettel will race for Red Bull until the end of 2015 after the team announced on Tuesday he had extended his contract by a further year.

More Motorsports Stories

• F1: Ferrari back FIA's handling of Mercedes test

• F1: Williams to provide batteries for Formula E series

• Formula One drivers lead tributes to dead marshal

• F1: Vettel makes up for past mistake in Canada

• F1: Hamilton finds a third way in Canada

• F1: McLaren endure a weekend to forget

• F1: Alonso not giving up despite losing ground to Vettel

• F1: Marshall killed at Canadian Grand Prix

• F1: Vettel wins in Canada to end American jinx

• F1: Hamilton looks at bright side after missing pole

• F1: Massa disappointed after yet another crash

• F1: Raikkonen and Ricciardo demoted for pit lane error

• F1: Vettel ends Mercedes run with Canada pole

• F1: Mercedes boss says he approved 'private' tires test

• F1: Alonso sets fastest lap in Canada practice

• F1: Proposed 2015 Thai Grand Prix looking uncertain

• F1: Alonso sure Vettel's luck will change for the worse

• F1: Under-fire Perez says his Monaco move not 'stupid'

Motorsports Photos

• F1: Vettel finally conquers Canadian Grand Prix

• Tony Kanaan wins Indy 500

• F1: Nico Rosberg gets pole-to-flag win in Monaco

• F1: Hometown hero Fernando Alonso conquers Spanish GP

• F1: Vettel emerges triumphant in Bahrain

• F1: Red augured well for Fernando Alonso at Chinese GP