By People Staff
Updated December 28, 2008 12:00 AM

Dancing with the Stars pro Mark Ballas suffered a groin injury and will have to sit out “a couple of weeks” to heal, he announced on Saturday night in Los Angeles.

Ballas, who won the season six DWTS mirror ball trophy with Olympic skating champion Kristi Yamaguchi last May, is on tour with the show. He grimaced in pain as he apologized to the Staples Center crowd for not being able to give his all, though he did manage a spirited performance with Yamaguchi as well as a crowd-pleasing, high-energy hip-hop routine with fellow pros Lacey Schwimmer and Derek Hough.

Ballas and Hough recently completed their first CD as Ballas Hough Band for Hollywood records. Both dancers anticipate returning to DWTS for its eighth season, which kicks off on ABC on March 9. — Monica Rizzo KELSEY McNEAL/ABC