WATCH: Squirrel runs onto court and interrupts match at 2015 US Open

A squirrel found its way onto Court 5 and interrupted a doubles match on Sunday at the US Open.

A squirrel invades the court at the US Open on Sunday. (Twitter)

The early rounds on Sunday at the US Open has been fairly uneventful, with the favorites rolling so far in Round 4 in the singles matches. 

The most exciting moment so far on Sunday took place during a doubles match on Court 5, and didn't have anything to do with the play on the court.  

A squirrel found its way onto the court and ran around, interrupting play briefly before bailing out over the wall and into the stands. 

The @usopen squirrel bum rush on Court 5. Don't be fooled. He's a rat in a fancy coat. pic.twitter.com/wBUtHl3onW

— TroubleFault (@troublefault) September 6, 2015