DeChambeau made an eight on the par-five 18th in Hamburg

American Bryson DeChambeau has apologised for his behaviour at the end of the European Open in Germany.

The 24-year-old was joint leader going into the final day but shot six over par as he finished tied for 13th.

His playing partner Richard McEvoy won but the American Ryder Cup hopeful exchanged only a very brief handshake, which was described as “classless”, with the Englishman at the end.

DeChambeau apologised to McEvoy “and the fans for my brevity on 18”.

In a post in Instagram,