Chelsea boss Thomas Tuchel was "largely culpable" for his clash with Tottenham boss Antonio Conte in a recent Premier League game.
That is the reason he was given a one-match ban, while Conte was not.
The Football Association reviewed the incident, which sparked clashes between both sets of players and coaching staffs as well.
Tuchel, who was fined £35,000 and given a one-match touchline ban, said he did not let go of Conte's hand during a post-match handshake as the Italian was not looking at him at the time.
"It was quite clearly TT [Tuchel] who instigated the confrontation between himself and AC [Conte] by choosing to grip AC's hand and jolt him back after AC had passed him by," read the commission's findings.
"Had TT not gripped AC's hand the confrontation between the two and the subsequent melee that followed would not have occurred.
"TT gripping AC's hand for the reason he gave (AC did not look him in the eye) was simply not justifiable; cursory handshakes are a common occurrence at the end of highly charged football matches and there exists no obligation for one person to look the other in the eye whilst shaking hands.
"TT telling AC to look him in the eyes whilst gripping his hand and not allowing AC to move away was a highly provocative act."
