United's Carrick says recovering from heart operation

Soccer Football - Manchester United Press Conference - Skopje, Macedonia - August 7, 2017 Manchester United's Michael Carrick during the press conference UEFA/Handout via REUTERS

(Reuters) - Manchester United midfielder Michael Carrick has undergone an operation for an irregular heart rhythm, he said on his Twitter feed on Thursday.

"After feeling strange in the second half of the Burton game in September, I underwent a series of tests," he said.