Rangers television play-by-play announcer Dave Barnett will miss the team's next two games against the Padres while he undergoes an evaluation after experiencing on-air issues this week.

Barnett believed an issue of recurring migraine headaches led to an incident that occurred in the eighth inning of Monday's game.

Rangers radio announcer Steve Busby will handle the television play-by-play duties in Tuesday and Wednesday's games in San Diego, working alongside Tom Grieve.

Rangers pre- and post-game radio host Bryan Dolgin will join Eric Nadel on the radio broadcasts during that time.