"Today the weather was perfect but it still was quite tough, " he said after his morning practice round on Tuesday.
The Brazilian had missed all of Saturday morning practice because of a broken gearbox and made a mistake early on his qualifying lap, ending up 15th.
The 25-year-old will take part in the Friday morning first practice sessions at Singapore, Japan, Korea and Brazil.
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James said after the morning shootaround practice that he intends to take some games off before the playoffs, presumably after Miami wraps up the No. 1 overall seed.
McIlroy was out in a three-ball with team-mates Llewellyn Matthews and Jamie Moul in Tuesday morning's practice at RCD.
Heat players were apparently unaware of the NBA's decisions while they were holding their game-day shootaround practice Thursday morning.
He paid people to pitch to him and others to shag balls for long stretches of early-morning and postgame batting practice.
And Hamilton continued his fine form on Saturday morning with the fastest time in final practice despite a mechanical problem early on.
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All were what you would call bread-and-butter physicians: busy, full-time, private-practice doctors who work from seven in the morning to seven at night and sometimes later, their waiting rooms teeming and their desks stacked with medical charts to review.
Giving evidence to the inquiry on Tuesday morning Marian McGrath said it was, in 2001, common practice at Altnagelvin Hospital that the anaesthetist would not issue a new prescription for fluids for a child leaving the operating theatre.
Hamilton was seventh quickest in both practice sessions on Thursday while Button was eighth fastest in the morning and ninth in the afternoon.
The absence of practice sessions makes the hour-and-a-half race-morning course inspection all the more crucial.
McLaren are expected to be the team to beat but Hamilton and Button did not look as quick in second practice as they had in the first 90-minute session in the morning.
Speaking with them gives you a taste of their harried lives: They arrived from Dubai on Tuesday or Wednesday, do publicity on Thursday and Friday, run practice rounds Saturday, race Sunday, then fly to Brazil first thing Monday morning for the final race of the season.
Seven-time world champion Schumacher was also third fastest in the morning, meaning the 41-year-old outperformed his younger teammate Nico Rosberg in both practice sessions for the first time in his comeback season.
The newest prize, announced on Friday morning in San Francisco, is the chance to ride along as a guest during an America's Cup practice run with champion yachtsman James Spithill.
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