Bolton Wanderers midfielder Fabrice Muamba has lifted the lid on the day his former Arsenal manager Arsene Wenger lost his cool.

Muamba could barely believe his eyes when he witnessed his former boss lose it following the Gunners' FA Cup fourth-round exit at the Reebok two years ago.

Wenger took his anger out on the visitors' dressing-room door after Stelios had headed a late winner in January 2006. Muamba, on the Arsenal bench that night, said: "Arsene Wenger doesn't lose it that often but he did that day.

"I'd just signed my professional contract and my reward was a place on the bench.

"The tie was goalless going into the last 10 minutes but then Stelios scored with a header. It wasn't a pleasant sight afterwards. All managers have got different sides to them.

"But I had never seen that side to him before. I thought 'wow' because I'd never seen him like this."