The Kansas City Chiefs said on Friday they had agreed a contract extension with Tyreek Hill, who escaped sanction in July following allegations he had assaulted his infant son.
The Chiefs said in a statement the contract, worth a reported $54 million (48.9 million euros) over three years, was contingent on Hill staying out of trouble.
"We're pleased we were able to reach an agreement with Tyreek to keep him in a Chiefs uniform for the foreseeable future," Chiefs general manager Brett Veach said.
"He understands our expectations of him as a member of this team and community. This extension is contingent upon the conditions Tyreek agreed to adhere to upon his return to the team in July.
"Tyreek is an elite player in this league and has played a major role in our team's success, and we're pleased that he'll continue to make an impact for us."
Hill, 25, meanwhile said he was "grateful for the opportunity" to continue his career with the Chiefs.
Hill was signed by the Chiefs on a four-year deal in 2016 after being chosen in the fifth round of the draft. His new deal will keep him at Kansas City through to the 2023 season.
Hill's career was left hanging in the balance earlier this year after an investigation into claims he had assaulted his three-year-old son, who suffered a broken arm.
Local prosecutors said in April however that even though they were certain a crime had taken place, neither Hill nor his partner, Crystal Espinosa, would face charges because they could not be certain who was responsible.
Hill, who had denied the allegations, was later informed by the NFL he would face no disciplinary sanctions from the league, which had carried out its own investigation.
"Local law enforcement authorities have publicly advised that the available evidence does not permit them to determine who caused the child's injuries," the NFL said.
"Similarly, based on the evidence presently available, the NFL cannot conclude that Mr. Hill violated the Personal Conduct Policy."
Hill had a chequered history even before the allegations regarding his son.
In 2014, he reportedly punched and choked his partner Espinal when she was eight weeks pregnant.
He was arrested and later kicked off the Oklahoma State University football team.
He later received three years probation after admitting domestic assault and battery in 2015.