Arsenal will be without Granit Xhaka for next month's showdown with Premier League leaders Chelsea due to a four-game ban.
Xhaka, 24, was sent off by referee Jon Moss for a two-footed challenge on Steven Defour in Sunday's dramatic 2-1 victory at home to Burnley.
It was the Switzerland international second red card of the season, having also been sent off by Moss in a 3-2 home win over Swansea City in October, which means he gets an additional game on top of the standard three-game ban.
