NAPA,Scarpe Adidas Scontate Online, Calif. (AP) 鈥?Second-round pick Menelik Watson's first practice of training camp lasted less than 30 minutes Wednesday before the Oakland Raiders' offensive lineman left the field after re-injuring a calf muscle in his left leg.
Watson, the 42nd overall pick and projected backup to right tackle Khalif Barnes, had been on the non-football injury list since the beginning of camp after injuring his calf in mid-July.
