Maurizio Sarri revealed he had "dealt with" Marco Ianni after his second assistant coach incited a touchline bust-up during a dramatic finish to Chelsea's 2-2 draw with Manchester United.
Ianni celebrated Ross Barkley's stoppage-time equaliser for the Blues in front of the visiting bench at Stamford Bridge, much to the annoyance of Jose Mourinho.
The United manager had to be restrained by stewards as tempers flared in the aftermath to the late goal, though Sarri insisted he did not witness the incident.
The Chelsea boss has, however, spoken to the member of his staff who was involved, while Mourinho insisted there was no bad feeling after receiving an apology from both Sarri and Ianni.
"Sincerely I have not seen what happened, but then I spoke to Jose, of course, then I spoke to the member of the staff because I think that we were on the wrong side, so I have dealt with this immediately," Sarri told Sky Sports.
"I think it's private. I spoke with the member of staff and I have to be very hard. I cannot come here and tell everything, otherwise with my staff I am not credible.
"I am not really happy, as I said before, after I have spoken with Jose I understood that we were on the wrong side of the situation."
The Blues fought back to preserve Sarri's unbeaten Premier League record, substitute Barkley securing a point when he fired home in the sixth and final minute of additional time.
Antonio Rudiger had headed the hosts in front, but United turned the game around, Anthony Martial grabbing a brace in an absorbing contest between Mourinho's current club and one of his former employers.
Sarri was disappointed with how his team struggled to cope with the visitors' more direct approach in the second half, though he will watch the game back before making a more detailed assessment of Chelsea's performance.
"I want to play for three points. For 60 minutes we played our football," the former Napoli coach said in his post-match press conference.
"Then after 1-1, we didn't play our football, only the long ball, we are not organised for the second ball. In this type of football, United are better than us. I am really disappointed in this type of performance.
"The 2-2 in the last minute is okay, okay for the confidence of my players, but I have to look [at] something.
"I have seen the match on the bench, and now want to study the second half of the match."
|Guendouzi underlines desire to represent France|
|I might need a couple of drinks to relax after that! - Rams coach McVay|
|Juventus´ Alex Sandro has Premier League ambition|
|Ederson taking goalkeeping to another level, says City hero Weaver|
|Ceferin dismisses "super league" plans as fiction|
|Rams defeat Chiefs in one of the highest scoring games in NFL history|
|Kemba Walker leads Hornets to win over Celtics|
|Gomez praises ´top player´ Van Dijk, Stones|
|Cricket Australia to maintain Smith, Warner ball tampering bans|
|Brazil´s Tite encouraged by Neymar captaincy|
|Holmes set for NFL switch after Cronulla release|
|Dier encourages English youngsters to follow Sancho´s lead|
|Southgate promises further changes to England squad|
|Jones sceptical over Pocock injury|
|Sane encouraged despite Germany´s ´annoying´ Nations League draw|
|Character got Netherlands through, says Koeman|
|Netherlands´ focus still on Euros - Van Dijk|
|Ireland will be ready for qualifiers, insists O´Neill|
|Smith undergoes successful surgery, Redskins sign Sanchez|
|Germany 2 Netherlands 2: Dramatic five-minute fightback seals Oranje progression|
|Denmark 0 Republic of Ireland 0: Thrills at a premium again in Aarhus|
|O´Brien could return for start of Six Nations|
|Cavani: Neymar and I are ´friends, brothers, team-mates´|
|Pothas named Windies interim head coach|
|LA Galaxy planning for Ibrahimovic stay|
|NFL will return to Mexico City in 2019|
|Broner vows to end Pacquiao´s career in Las Vegas|
|UEFA should punish PSG and Man City, says LaLiga chief|
|Teenage driver Floersch has ´no fear of paralysis´ after operation|
|Mancini bemoans Italy´s misfortune in front of goal|
|Sprint legend Johnson ´pretty much back to normal´ after stroke|
|Bournemouth defender Adam Smith out for three months|
|World champions France out to end 2018 on a high|
|I told him there´s no future in football! A-Rod relieved to be ignored by Mahomes|
|Dembele must focus and be more responsible - Suarez|
|Neymar could return one day – Barca chief|
|Cole backs West Ham to keep Arnautovic|
|Injury rules Bernardo Silva out of Poland clash|
|Lamar Jackson debut start ´spectacular´ - Ravens coach Harbaugh|
|Babar run out the turning point, laments Sarfraz|
|West Ham boost London Stadium capacity to 60,000|
|A great advertisement for Test cricket - Williamson revels in stunning win|
|Van Dijk one of the world´s best - Klaassen|
|Floersch had ´angel on her shoulder´ in horror crash|
|Gascoigne charged with sexual assault|
|I am going to stay at Chelsea and fight, insists Giroud|
|Hansen to make announcement on All Blacks future|
|I have reached the top by joining Chelsea - Sarri|
|Bonucci tells Italy boo boys to ´live with less envy´|
|Dramatic Pakistan collapse gives Stead first New Zealand Test win|
|Button enjoying racing for first time in years|
|Dortmund chief not planning Pulisic sale|
|Theismann: Smith leg break ´heart-wrenching´ to watch|
|Wolves defender Jonny suffers knee injury|
|Holmes to meet with Sharks amid NFL switch talk|
|LeBron made 51 points ´look easy´, says Walton|
|McGuire signs four-year deal with Cowboys|
|Bears beat Vikings to extend NFC North lead|
|Peng overcomes Davis in Houston final|
|Kerr says this has been his toughest stretch as Warriors coach|
|LeBron scores 51 in Lakers´ win, Warriors fall to Spurs|
|Win more than Djokovic? Let´s chill out – Zverev|
|Steelers´ rally highlights wild day of close, last-minute finishes|
|Modric not worried about Ballon d´Or|
|Saints pull away for blowout victory over Eagles, extend winning streak to nine|
|Martinez laments loss of control by Belgium|
|Logano claims first NASCAR Cup championship|
|Luis Enrique delighted with attitude of Spain´s squad|
|Stevens tells Celtics to get ´tougher´|
|Griezmann: Being Messi´s lieutenant played a part in rejecting Barcelona|