This is what Chelsea hero Gianluca Vialli believes anyway and he should know having played with Robert Mancini, one of the fieriest characters in the game.
Vialli was only 20 when he joined Sampdoria from Cremonese in 1984 and was exposed early to his close friend’s ferocity after seeing him scrap with team-mate Trevor Francis, who was 10 years his senior.
“I remember the first friendly match of the summer after our training camp. I think we were playing in Viareggio in Tuscany,” Vialli explained.
“I was suspended, so I walked into the dressing room after the match and Robbie and Trevor were trying to punch each other.
“Obviously they had a disagreement on the pitch!”
These things happen, he explained but there was at lease one positive to come from it.
“I did think to myself ‘I might be able to play a lot of games this season because these two don’t seem to get on well together so I’ll be the one to take advantage,’” he joked.
Francis left the club in 1986 and Vialli struck up a lethal partnership with Mancini, who remained at Sampdoria until 1997.
Vialli, meanwhile, headed to Juventus in 1992 after winning the Serie A with Samp before moving to Chelsea in 1996 after his Champions League triumph.