Theo Epstein watches Cubs game from the bleachers in disguise (photo)

How else should club president Theo Epstein celebrate the Chicago Cubs NL Central Division title?

The day after clinching a playoff berth or division title is always a special occasion for any postseason-bound MLB team. Rookies and reserves get their chance to shine, as much of the regular lineup is typically given the day to rest.

That was the case for the Cubs who gave their regulars the day off but team president Theo Epstein didn’t take the day off. In fact, he was trying to mingle with the fans and used a disguise to fit in.

As Sports Illustrated originally reported, Epstein appeared to be spotted in the bleachers at Wrigley for Chicago’s game against the Milwaukee Brewers wearing a fake mustache.

— Born on Third (@BornOnThirdCubs) September 16, 2016

The mysterious figure was indeed confirmed to be Epstein, with other members of the front office around him, including general manager Jed Hoyer. ESPN’s Darren Rovell reports that Epstein doesn’t seem to mind having his cover blown, as he was later spotted still wearing the mustache and a shirt with an inspirational quote from manager Joe Maddon on it.

The Cubs treated Epstein to some bonus baseball, as they went to extra innings tied 4-4 against the Brewers with a ninth inning rally. Chicago dropped its contest against Milwaukee yesterday but clinched its first division title since 2008 thanks to the San Francisco Giants’ win over the St. Louis Cardinals.

Epstein has revitalized the franchise since coming aboard following the 2011 season when the Cubs won 71 games. Chicago qualified for the playoffs a year ago as a Wild Card and owns an MLB-best 93-53 record in 2016 so far.

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The Cubs front office can relax for now, but the pressure will be on in a few weeks in the MLB playoffs with World Series or bust expectations.