Diego Costa was in an evidently weird mood during Chelsea training on Thursday.
Perhaps it was sheer unrest at his current goalless run for the Blues, having gone four games without hitting the back of the net, but the Spain international displayed some rather strange behaviour when trying to lighten up training.
Costa rolled up in a cart and proceeded to smash a series of hurdles carefully laid out by a member of staff as his teammates watched on in stunned bemusement. While a few laughed, Costa still felt the urge to apologise as some of his colleagues looked on.
Eden Hazard seemed especially unimpressed with the striker's conduct, but Blues fans will be hoping the pair are on the same page when they travel to Bournemouth on Saturday.
Their lead at the top of the Premier League could be cut to four points by time they play Bournemouth in the late kick-off, with Tottenham entertaining Watford in the day's early match.
Costa has 17 Premier League goals in 28 matches this season but hasn't scored for the Stamford Bridge club since netting in the 2-1 win over West Ham in March.