(SportsNetwork.com) - When one training room door closes for the Los Angeles Angels of Anaheim, it seems another one opens.
The Angels got superstar outfielder Josh Hamilton back for Tuesday night's opener of a three-game series with the host Houston Astros at Minute Maid Park, but they may be without another phenom in Mike Trout when they continue the series with game two on Wednesday night.
Trout has been hampered by a back injury and exited Tuesday's game after just one at-bat, leaving his status for Wednesday unclear.
"I just didn't feel comfortable," he said. "I didn't want to risk it by pushing it too much. I don't think it's that severe, but we'll see."
Hamilton, who had missed 48 games with a thumb injury, homered in his return.
The Astros debuted their latest young sensation as well on Tuesday, when Jon Singleton homered and drove in two runs in his first big-league game. Another new addition, George Springer, won AL Rookie of the Month honors in May after making his debut on April 16.
Houston sends righty Jarred Cosart to the mound after a stretch in which he's won three of four starts. He was a 9-3 winner at Kansas City last Wednesday after allowing two runs in five innings.
He faced the Angels on April 7 and was dinged for five runs in a 9-1 loss.
Los Angeles replies with skidding righty Garrett Richards, who's posted an unsightly 7.98 earned run average in his last three starts, beginning with a 5-2 loss to the Astros in Anaheim on May 19.
In his last outing on Friday at Oakland, he allowed five runs in two-thirds of an inning in a 9-5 loss.
In Houston on April 4, he was an 11-1 winner after tossing five innings.
On Tuesday, Collin McHugh tossed five scoreless innings and Houston used an early burst of offense to subdue the Angels, 7-2.
Jason Castro and Robbie Grossman each hit a two-run single during a five-run third inning for the Astros. Chris Carter also went deep.
McHugh (4-3) fanned four, walked two and gave up just two hits for the win.
Collin Cowgill hit a solo shot for the Angels.
C.J. Wilson (6-5) lasted just 2 2/3 frames, charged with six hits and five runs and five walks.