Boston Celtics president of basketball operations Danny Ainge suffered a mild heart attack in Milwaukee on Tuesday night, according to Shams Charania of The Athletic. He received immediate medical attention and is expected to make a full recovery.

Ainge is expected to return to his home in Boston this evening and is active, walking around today and feeling much better, according to Charania.

The Celtics longtime executive has been following his team's run very closely this season after Boston got off to a sweep start of the first-round series, beating the Indiana Pacers in four games.

Following a rousing 112-90 road win in Game 1, the Celtics lost Game 2 by 21 points in a role reversal that will surely test Boston as the series heads back to the TD Garden for Games 3 and 4.

Ainge was in Milwaukee to watch Boston’s Game 2 loss to the Bucks.

Despite being a mild heart attack, the Celtics are expected to closely monitor their 60-year-old top-line executive as the postseason goes on, making his good health a priority.

Ainge had also suffered a minor heart attack back in 2009, which required a brief stay in the hospital.

The Celtics will resume their series on Friday, when they host the Bucks at the TD Garden for Game 3.