ST. PETERSBURG -- The Rangers have placed reliever Tony Barnette on the 10-day disabled list with tightness and inflammation in the back of his right shoulder. That allowed the club to recall Ryan Rua from Triple-A Round Rock, after optioning him on Monday. Normally a player is required to stay down at least 10 days after being optioned, but an exception can be made in case of injury.
The Rangers need Rua because infielder Jurickson Profar is still in the concussion protocol. Profar must pass a series of tests and be cleared by a doctor before he can return. The Rangers have not yet decided if they will use the seven-day concussion disabled list, but Profar was unavailable on Tuesday night.
"You don't have to at this point because you can backdate it three days," Banister said. "The initial diagnosis was a mild concussion, so you can still give it time."

Barnette began the season on the disabled list with back tightness and made just two appearances after being activated. His last outing was on Saturday, when he threw two scoreless innings and 40 pitches against the Astros.
"There is concern any time one of these guys tell you they are tight or sore," Banister said. "But based on talking to the trainers and doctors, there is not a high level of concern."
Rua was the Rangers' left fielder on Opening Day and the original plan was to allow him to play regularly. That started to change with the spate of injuries, and after Texas promoted first baseman Ronald Guzman and infielder Isiah Kiner-Falefa and claimed right-handed hitter Renato Nunez off waivers from Oakland. Rua's circumstances have changed quickly in 48 hours, going from regular left fielder to Minor Leaguer to now a backup utility player.

"I'm used to it," Rua said. "I was told I was going to get an opportunity to play. You would think I'd get more of a chance with all the injures, but it has been the opposite. But I'm here to show up, do my job and play hard."
Rua can play the infield if needed. The Rangers' main infield depth beyond him is Hanser Alberto at Triple-A Round Rock, and he is not on the 40-man roster. The Rangers have Eliezer Alvarez on the 40-man roster but he has never played above Double-A. Right now, he is mainly playing the outfield at Frisco.
Banister lauds Chavez
The Rangers are back to seven relievers with Barnette going on the disabled list, but Banister said the bullpen is fresh because of four scoreless innings from Jesse Chavez in the 8-4 loss to the Rays on Monday. The Rangers were coming off two 10-inning games against the Astros on Saturday and Sunday.

"This is one of those things we'll be able to look back on and recognized what he was able to do to save the bullpen," Banister said. "We had a group of guys that needed some [down] time. Tremendous job by Chavez."
Chavez's 14 relief innings are the third most in the Major Leagues this season, going into Tuesday's games.
Perez detects delivery flaw
Martin Perez studied video on Tuesday, the day after giving up eight runs to the Rays, and saw a mechanical flaw in his delivery that was allowing opposing hitters to recognize his pitches easier.
Perez said when he begins his delivery, he was too slow in taking his pitching hand out of his glove. The result was he wasn't getting his arm "over the top" of his delivery. Instead, his arm was dropping and he was delivering more from the side.

"If I get on top of the ball, they can't see my pitches," Perez said. "But if I come from the side, they recognize it quicker."
Getting on top of the baseball also allows his curveball to be sharper and get more sinking action on the fastball. Both were erratic in his start against the Rays.
Rangers beat
• Concrete was poured on Tuesday morning for the first elevated structural deck for the new Globe Life Field. The work began on the southeastern portion of the site, on what will be the future lower-level concourse. About 500 cubic yards of concrete will cover 11,100 square feet to make up the lower concourse. Completion of lower concourse concrete work is expected later this fall. 
• Delino DeShields, on the disabled list while recovering from surgery on his left wrist, is back to full baseball activities and said he has felt good swinging the bat. He will be re-evaluated when the Rangers return home.
• Banister took a couple hours off early Tuesday morning to go fishing in Tampa Bay. He didn't catch anything but said, "It's nice to watch the sun come up. Not a bad morning."