Andrelton Simmons left Wednesday's game against the Nationals with an apparent ankle injury.
The Braves haven't said a reason for his departure, but Atlanta Journal-Constitution beat writer David O'Brien said it appeared Simmons aggravated a previous ankle injury running from first to second base in the first inning. Phil Gosselin replaced Simmons at shortstop, and the Braves should update his situation shortly.
Lisalverto Bonilla will start for the Rangers against the Angels on Friday.
Bonilla made his first major league start over the weekend, picking up the win against the Braves. With Scott Baker still dealing with a triceps issue, Bonilla will get another turn, this time against the AL West-champion Angels. The 24-year-old isn't much of a streaming option at this point.
Glen Perkins will undergo an MRI exam on his left elbow/biceps area on Thursday.
Perkins looked abysmal on Tuesday night, surrendering a three-run home run to J.D. Martinez en route to blowing his seventh save of the season. He certainly hasn't looked right as of late, posting a 14.21 ERA and 2.21 WHIP over his last eight outings (6 1/3 innings), so hopefully Thursday's exam will provide some answers. Casey Fien or Jared Burton would likely get the call to work the ninth inning in his absence.
The results of Angel Pagan's (back) MRI came back clean on Wednesday and the veteran outfielder expects to return to the Giants starting lineup on Friday.
Pagan has reported significant improvement after sitting out the entire three-game set against the Diamondbacks. In what has been a season ravaged by injuries, he has managed to excel when on the field, hitting .302/.342/.391 with three homers, 27 RBI and 15 stolen bases in 95 games.
Wade LeBlanc is the most likely candidate to start for the Angels on Saturday.
Angels skipper Mike Scioscia said he wouldn't announce his starter until after Wednesday night's game, but LeBlanc is the most logical choice. With a 6.88 ERA, 1.47 WHIP and 14/6 K/BB ratio through his 17 frames, he isn't a good streaming option in mixed leagues.