Rangers manager Pedro Caixinha has defended his move to confront Celtic captain Scott Brown at half time during Saturday's Old Firm game at Ibrox.
Second-half goals from Tom Rogic and Leigh Griffiths gave Scottish Premiership champions Celtic a deserved 2-0 victory but Caixinha was irked by a clash between Brown and his forward Alfredo Morelos.
The Portuguese coach accused the Celtic midfielder of elbowing Morelos and claimed it is not the first time he has got away with being overly physical.
Words were exchanged before the pair were pulled apart and after the match Caixinha told Sky Sports: "I just told him, be clear with me, on the pitch you're not giving me an elbow.
"You do it because you demand everything and everyone allows you to do it, but not with me. Loud and clear, loud and clear.
"I don't care if he got the message, I'm here to face whatever I need to face.
"When these things happen, someone needs to take decisions. I'm here to take my decision, but all the others in other jobs need to take theirs.
"It's the second time in a row I've watched this at Ibrox."
Celtic boss Brendan Rodgers hailed his team's patience after a dominant opening to the contest went unrewarded.
"It was a very good performance," he said. "The quality came through in the end.
"We lacked the final ball in the opening period. They had two chances on the counter-attack. In the second half, we were able to take control of the game.
"The players showed courage to pass the ball in an incredible atmosphere.
"When we did manage to do that, we were able to open Rangers up. It's part of our game that has really developed and that is very pleasing."
|Mourinho sacked: Five reasons it went wrong at Manchester United|
|Mourinho sacked: Jose´s Manchester United record in Opta stats|
|Mourinho sacked: Pogba, Ronaldo and Jose´s biggest bust-ups|
|Mourinho sacked: Blanc, Solskjaer - the men who could steady the United ship short-term|
|Mourinho sacked: The football world reacts|
|Mourinho sacked: What former United stars said after Liverpool loss|
|Mourinho sacked: Where next for the axed Manchester United boss?|
|UEFA to investigate alleged racist incidents at Vidi-Chelsea|
|Australia unchanged for rest of India series|
|Mourinho sacked: Pogba´s tweet a dig at departing Man United boss?|
|Newton left frustrated by shoulder injury as Panthers lose again|
|Mourinho sacked: Pochettino & Zidane lead potential Man Utd replacements|
|Mourinho sacked: Neville urges Man United to go for Pochettino|
|Boylen pleased to see Bulls react to red rag in Thunder fracas|
|Icardi and Inter ´very far´ apart in contract negotiations|
|Mourinho leaves Manchester United|
|Curry humbled by latest milestone|
|Robertson: ´Unbelievable´ Alisson will bounce back from error|
|Curry scores 15,000th regular-season point in Warriors win|
|Rams star Gurley ´day-to-day´ with knee inflammation|
|Saints poised to clinch NFC top seed after topping Panthers|
|Mathews, Mendis centuries frustrate New Zealand|
|Kohli: Relentless Australia deserved victory|
|Relief for Paine and Australia after ending Test drought|
|Australia level series with dominant win over India|
|Libertadores holders River learn group as CONMEBOL boss calls for end to violence|
|Chargers RB Gordon planning to return against Ravens|
|Kobe Bryant visit motivated Browns´ Jabrill Peppers|
|De Bruyne: Fatigue not behind injury woes|
|´That´s not my concern´ - Broncos coach Joseph on job security|
|Lowry on Leonard´s free agency: I just want him to be happy|
|Yankees give Sabathia $500K bonus despite ejection|
|Ronaldo confirmed Juventus interest in January – Mendes|
|Lakers guard Rondo to begin rehab stint in G League|
|Saiz to leave Leeds United for Getafe|
|Whyte thinks Joshua rematch is ´only a matter of time´|
|Greenwood stars as Man United end Chelsea´s FA Youth Cup dominance|
|Panthers tight end Olsen expects ´full recovery´ after surgery|
|Derby County 0 Nottingham Forest 0: Lampard´s men fourth after tense stalemate|
|Clermont lose former All Black Toeava for six months|
|MLS unveils revamped playoff format for 2019 season|
|Ferrari to celebrate Schumacher´s 50th birthday with museum exhibition|
|Rabiot set for PSG exit after cancelling contract talks|
|Pepe departs financially troubled Besiktas|
|Philadelphia Flyers fire coach Dave Hakstol|
|Eagles to start Foles v Texans|
|PSG matches against Montpellier and Dijon rearranged|
|Martial agent clouds long-term future after United trigger extension|
|Zverev to make major final in 2019, predicts Ferrero|
|Canelo, Crawford, Lomachenko and the other pound-for-pound contenders|
|Barcelona boss Valverde admits to Lyon uncertainty|
|Club World Cup: Maverick Quintero gets another chance on the big stage|
|Henderson to miss majority of Ireland´s Six Nations campaign|
|Gentner to play on despite father´s death|
|Just good banter – Australia and India not concerned by Paine-Kohli exchange|
|Titans CB Logan Ryan out for season with broken leg|
|Suns send Trevor Ariza to Wizards for Kelly Oubre, Austin Rivers|
|Mourinho charge for ´improper´ language dismissed|
|Are the Knicks for sale? Depends on the offer, says Dolan|
|Klopp´s Liverpool are vulnerable – Neuer|
|Warrington: Frampton not an elite fighter|
|I want to finish the job off - Yates confirms Giro d´Italia focus in 2019|
|Atletico confirm Filipe Luis hamstring injury|
|Best backs Schmidt to lead Lions in 2021|
|Barcelona´s Vermaelen out for a month with calf injury|
|India lose Shaw for Australia tour as defeat looms in Perth|
|We didn´t have much luck - Nedved dismayed by Atletico tie|
|Manchester City must control Schalke, Begiristain warns|
|Ibrahimovic hints at LA Galaxy stay|
|Latham fills his boots in Wellington with record-breaking knock|