ARLINGTON (July 2, 2012) -- Texas Rangers television announcer Dave Barnett says he doesn't expect to return this season after an on-air incident in which he gave a rambling, incoherent description that confused viewers.

Barnett said in a statement issued through the team Monday that he was taking an indefinite leave of absence for medical reasons. He didn't elaborate.

During the eighth inning June 18 in San Diego, Barnett said a runner was on "fifth" base after a "botched robbery." He then mentioned a "henchman" before the broadcast went silent for several seconds.

Barnett told The Dallas Morning News last week that he had no recollection of the incident and was diagnosed with a "complicated" migraine.

Steve Busby will keep Barnett's play-by-play duties. Matt Hicks has taken Busby's place on the radio crew.

Here is the statement Barnett issued on Monday:

"I want to thank everyone for your kind sentiments and words of encouragement over the last couple of weeks. It has meant a lot to me during what has been a very difficult time. Effective immediately, for health reasons I will be taking an indefinite leave of absence from my broadcasting duties that I expect to last for the remainder of the season.

I would ask that you please respect the privacy of me and my family during this time.

Thank you once again for your support."