Let it be known that Anthony Davis is for real, although that shouldn't be much of a question by now. Davis just posted an outstanding game in an overtime win against the Celtics, finishing with 40 points and 21 rebounds. This is the 18th 40-20 game in NBA history, and the first since Dwight Howard did so in 2012.

Shaquille O'NealLarry BirdChris WebberHakeem Olajuwon, Patrick EwingCharles BarkleyJoe Barry Carroll, Antonio McDyessMike Gminski are the others who accomplished the feat. O'Neal is the only one to do so four times, including a 2000 game where he scored 61 points and grabbed 23 rebounds.

Davis' name has to go down with an asterisk though. The Celtics were playing with sleeves. LeBron James will tell you that's a disadvantage.

RELATED: The 25 Best Players Under 25 

[via Pro Basketball Reference]