The Miami Dolphins will be without running back Mark Walton for four games after he was suspended for violating the NFL’s substance abuse policy.

It was confirmed on Monday that Walton had been suspended due to multiple incidents prior to signing for Miami in the offseason.

Walton, who was selected in the fourth round of the 2018 NFL Draft by the Cincinnati Bengals but was waived after his third arrest of 2019, has started the past four games and rushed for 201 yards on 53 carries this season.

“We have been in communication with the NFL regarding Mark’s suspension,” Dolphins coach Brian Flores said.

“The conduct of our players is very important and Mark has done everything we have asked of him both on and off the field since signing with the Dolphins. We look forward to having him back at the conclusion of his suspension.”

Walton will be eligible to return in Week 14 against the New York Jets.