After injuring his wrist last weekend at the opening round of the Lucas Oil AMA Pro Motocross Championship at Hangtown, DNA Shred Stix Yamaha's Ryan Sipes will be racing this weekend at Freestone. Sipes suffered some scar tissue damage in his wrist, but did not suffer any broken bones. Stay tuned to Racer X Online for more pre-race coverage of the 2011 Lucas Oil AMA Pro Motocross Championship.