Hours after winning a second consecutive Olympic gold in the 100 meters, Usain Bolt took a moment to tweet a message of support for injured Jamaican teammate Asafa Powell.

Bolt — whose handle is (at)usainbolt — wrote: "Respect bossy..hope u get well soon.. You started this Jamaican take over (at)officialasafa"

Powell, who held the 100 world record from 2005 until Bolt claimed it in 2008, pulled up with a groin injury Sunday and finished last in the dash. Bolt won in an Olympic-record 9.63 seconds.

What's not clear is whether Powell will be able to help Bolt and Jamaica try to defend their title in the 4x100 relay. That event's heats are Friday night.

"I got out of the starting blocks and stumbled," Powell said Sunday at the stadium. "I reinjured my groin and I couldn't push."

— Howard Fendrich — Twitter http://twitter.com/HowardFendrich

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