Dennis joined the Bundesliga side Cologne from Club Brugge temporarily in January as the German side try to explore every available options to find the back of the net in the 2020/2021 campaign.
According to a German website Mobil express, the 51-years-old Heldt confessed that Dennis was a fine footballer but that the Club Brugge-owned attacker’s character affected his integration with his teammates and the club.
“He’s not an easy guy,” Heldt said of Dennis, We knew about this problem, but we took too much risk. We misjudged that.”
“Dennis caused a stir because his behavior was not what the squad needs to be doing. We then dropped him because our priority was the group.
“That was a bad transfer that is my responsibility.”
The Yola, Nigeria born striker managed to register a goal in a DFB Pokal game against Jahn Regensburg but did not find the back of the net in any Bundesliga game during his time with Cologne, he provided an assist in nine appearances in the Bundesliga as Cologne fought to stay up in the German top flight.
Dennis who scored in the 2-1 win of Club Brugge first Champions League Group F fixture of the just concluded season against Zenith Petersburg, in October 2020, was left out of a Champions League game against Dortmund due to disciplinary issues after reportedly storming off the team bus.
The 23-years-old forward is expected to return to his parent club this June after the expiration of his temporary deal.