Al Trautwig is taking a personal leave of absence from MSG Networks, The Post has learned.

Trautwig, 63, is expected to return to his Knicks and Rangers hosting duties at some point during the regular season, though an exact date is undetermined. It is unknown what issue Trautwig is dealing with.

MSG Network confirmed the leave, but did not specify the reason.

“I’m going to be taking some personal time off, and look forward to returning to what I love most — bringing NY fans the coverage they crave on MSG Networks,” Trautwig said in a statement.

Besides being with MSG for three decades, Trautwig has been a broadcast network announcer, most notably on NBC’s coverage of the Olympics.

Last Wednesday, Trautwig did not look well during his time on air. It was noticed by viewers and the network’s personnel. MSG executives huddled with Trautwig to determine the best course of action.

While the Rangers do have exhibition games this week, there are no pre- and post-game shows. John Giannone will handle the intermission duties.

It is undetermined how MSG Network will fill Trautwig’s role during the regular season, but Bill Pidto — who already does Knicks and Rangers — figures to be even more in the mix.