Bryce Harper accidentally tweets picture wearing Nike shorts, replaces it with Under Armour

Bryce Harper is a proud endorser of Under Armour. The Washington Nationals phenom is one of the most important athletes the sports apparel company has on its roster. Earlier this week, Harper accidentally betrayed them.

On Thursday, Harper posted a photo on Twitter to show his followers that he has successful undergone knee surgery to repair a bursa sac and is back to exercising. He originally posted the photo you see above of himself riding an exercise bike, but then deleted it. Fortunately, DC Sports Bog was able to capture the tweet first. Can anyone guess why Harper deleted it?

The Under Armour man accidentally showed his 350,000-plus followers that he was working out in Nike shorts. Tisk, tisk. Harper later posted another photo of him on the exercise bike, this time proudly wearing Under Armour shorts and a hoodie.

#TeamUA #IWILL RT @Bharper3407 Riding the bike today! #progress pic.twitter.com/GWP6G9l8g0

— Under Armour (@UnderArmour) November 8, 2013

Looks like Bryce could learn a thing or two from fellow Under Armour endorser Tom Brady, who once did this at a press conference to display his brand loyalty. Throw out those Nike shorts.

H/T Business Insider