WATCH: David Ferrer Nails Unsuspecting Australian Open Chair Umpire In The Head

The Australian Open’s No. 5 seed, David Ferrer, was ousted in straight sets by Novak Djokovic in the quarterfinals earlier Wednesday, but his second round matchup against Ryan Sweeting gave one poor chair umpire a reminder to stay alert.

Watch as Ferrer returns Sweeting’s serve right in the direction of the chair ump’s dome (via Busted Racquet).