Tributes are being paid to Baltimore Ravens cornerback Tray Walker after he died in a motorbike crash.

The 23-year-old, who played eight games during his rookie season for the Ravens, sustained serious head injuries in the incident in Miami on Thursday night and passed away after 24 hours in intensive care.

Tributes poured in following the news, with coach John Harbaugh remembering his commitment to the team ethic at the Ravens.

"Tray was a young man with a good and kind heart," Harbaugh said in a statement.

"He was humble and loved everything about being part of the Ravens' team. He loved his team-mates, the practice and the preparation, and that showed every day. He was coachable, did his most to improve and worked to become the best.

"I'll never forget that smile. He always seemed to be next to me during the national anthem; then we would give each other a big hug. May he rest in the Peace of Christ Jesus forever."

Free safety Eric Weddle added on Twitter: "Devastating news about my teammate Tra Walker. RIP Tray. Wish I could of shared the field with u this year. We will make u proud!!!!!!"