Kansas City Chiefs wide receiver Rashee Rice has vowed to mature after a tumultuous offseason that saw him arrested for allegedly causing a six-vehicle crash.

Rice faces charges including aggravated assault after he and another driver of a speeding car allegedly caused a pile-up on a Dallas highway in April.

He was also investigated in connection with an alleged assault in a Dallas nightclub, but police said no charges would be brought against him over that incident last month.

The second-year receiver – who caught six passes for 39 yards as the Chiefs beat the San Francisco 49ers to win Super Bowl LVIII in February – says he has learned from those incidents and is determined to put them behind him. 

"I've learned so much from that," he said. "All I can do is mature and continue to grow from that. This is a step in a better direction for me.

"Accidents and stuff like that happen, but all you can do is move forward and walk around being the same person, try to be positive so that everybody can feel your love and your great energy."

Rice's 26 passes caught throughout last season's playoffs represented a new record for any rookie, beating Ja'Marr Chase's total of 25 from two years earlier. 

Throughout his first regular season in the league, the former SMU Mustangs man caught 79 passes for 938 yards and seven touchdowns in 16 games.