Article Photos: Sam Bradford cancels press conference

In this photo taken on Saturday, Oct. 17, 2009, Oklahoma quarterback Sam Bradford (14) grimaces in pain while sacked by Texas cornerback Aaron Williams (4) during the first half of an NCAA college football game in Dallas. (AP Photo/Tony Gutierrez)

In this photo taken on Saturday, Oct. 17, 2009, Oklahoma quarterback Sam Bradford (14) grimaces in pain while sacked by Texas cornerback Aaron Williams (4) during the first half of an NCAA college football game in Dallas. (AP Photo/Tony Gutierrez)