New England Patriots tight end Rob Gronkowski warms up before an AFC divisional playoff NFL football game against the Houston Texans in Foxborough, Mass., Sunday, Jan. 13, 2013. Gronko

 

              New England Patriots tight end Rob Gronkowski warms up before an AFC divisional playoff NFL football game against the Houston Texans in Foxborough, Mass., Sunday, Jan. 13, 2013.  Gronko
New England Patriots tight end Rob Gronkowski warms up before an AFC divisional playoff NFL football game against the Houston Texans in Foxborough, Mass., Sunday, Jan. 13, 2013. Gronkowski went to the locker room with an arm injury midway through the first quarter, and did not return. (AP Photo/Elise Amendola)