Derby and Forest open investigation into alleged incident involving Richard Keogh

Derby County manager Phillip Cocu has confirmed an investigation has been launched into an alleged incident involving Republic of Ireland defender Richard Keogh in the aftermath of Tuesday night's Carabao Cup defeat at Nottingham Forest.

An altercation involving Rams skipper Keogh reportedly took place while substitutes were warming down and members of the Forest ground staff were tending to the pitch following their 3-0 loss.

Pictures have been published of Keogh with blood on his neck, and Cocu – when previewing Saturday’s Championship match at Brentford – confirmed an investigation has been launched by both clubs.

“It’s always negative if an incident happens on the pitch, especially after the game,” Cocu told reporters.

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“At the moment both clubs are investigating what happened, so I can’t say too much.

“I have spoken to Richard, as well as other members of the club, and it is still ongoing. There will be an announcement if something happens.”