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No joke: Fans can bid on No. 110 jersey

OK, so the Bears really won't be wearing triple-digit jerseys this season. But the No. 110 jersey that quarterback Mitchell Trubisky wore in the team's April Fools' Day prank video is being auctioned off to benefit Bears Care.

The authentic one-of-a-kind jersey—which Trubisky will autograph personally to the winner—is affixed with a commemorative Bears100 patch celebrating the team's 100th season. It also reads "April Fools" on the back.

In the near future, the Bears Care auction app will also offer the chance to bid on exclusive Bears experiences, game-used items, signed keepsakes, memorabilia and items that have been displayed at Halas Hall.

One hundred percent of the proceeds go directly to Bears Care, the charitable arm of the Bears. To bid on an item, 1) Download the Chicago Bears official app from the app store or Google play store; 2) Tap "more;" 3) Tap "Bears Care auction;" 4) Log in or register; 5) Start bidding.