They have the worst fans in the Championship. Football is about passion, not hate. PGMOL have to caution them.”The CBS Arena was rocking from the first whistle, with Coventry supporters turning up the volume throughout the night.

Hellberg Furious After Middlesbrough Fall 3–1 to Coventry
Middlesbrough boss Kim Hellberg did not hold back in his post-match reaction after his side suffered a 3–1 defeat to Coventry City at the CBS Arena.
The result not only boosted Coventry to the top of the Championship table but also left Hellberg fuming over what he described as an unacceptable atmosphere inside the stadium.
️ “What I saw last night was unacceptable,” Hellberg said angrily after the game.

 “They have the worst fans in the Championship. Football is about passion, not hate. PGMOL have to caution them.”
The CBS Arena was rocking from the first whistle, with Coventry supporters turning up the volume throughout the night. Their relentless chants created a hostile environment that appeared to unsettle Middlesbrough’s players, particularly during key moments in the first half.
Coventry fed off the energy, pressing aggressively and capitalising on defensive lapses to take control of the contest. By the time Middlesbrough found a response, the damage had already been done.
Despite pulling one goal back, Middlesbrough struggled to regain composure as Coventry sealed the win with a decisive third goal, sending their fans into celebration and pushing the Sky Blues to first place in the league standings.
For Hellberg and his players, it was a night of frustration — both with the result and the atmosphere that he believes crossed the line. Whether his comments will spark further action remains to be seen, but the rivalry between the two sides has certainly intensified.