TEMPE, Ariz. -- Angels left-hander Tyler Skaggs was scratched from his scheduled start Friday after experiencing shoulder weakness following his spring debut last week, manager Mike Scioscia said.
Skaggs was scheduled to throw two innings against the White Sox last Saturday, but he couldn't make it through one inning. The 25-year-old southpaw faced six batters, recorded two outs and issued four walks in the rocky outing. Skaggs' fastball was reportedly clocked by scouts at 89-92 mph at the beginning of the start, but dropped to 86-88 mph by the end.
Scioscia said a postgame evaluation by the club's medical staff detected Skaggs' shoulder issue.
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"After Tyler came out, there was a little bit of a deficit [in his shoulder] that has corrected itself now," Scioscia said Wednesday. "He's fine. He's playing catch. He will throw a bullpen over the weekend, probably Saturday, then fold right back into his next start early next week."
Scioscia said the Angels have started putting all their starters through a strength test at the end of every outing this spring in an attempt to prevent injuries that could result from fatigue.
"It's a great tool because it lets you stay ahead of some stuff," Scioscia said. "We're going to use it."
Skaggs missed nearly two years while recovering from Tommy John surgery, but he returned to the Angels rotation in late July and finished the 2016 season with a 4.17 ERA over 49 2/3 innings.
Right-hander JC Ramirez, who is fighting for a spot in the Halos' rotation or bullpen this spring, will start Friday against the Padres in Skaggs' place.