Pittsburgh Steelers receiver Antonio Brown has made a tradition of arriving at training camp in style ... but this year, team-mate James Harrison has stolen his thunder.

When the NFL team assembled this week, Brown rocked up in a chauffeur-driven 1931 Rolls Royce Phantom convertible, the latest in a long line of classy rides.

The previous two seasons, he has pulled up in more modern Rolls Royce models, both painted in Steelers black-and-yellow colours.

But five minutes after his latest arrival, Brown had to hand his crown to linebacker Harrison, who has wowed social media with his outrageous off-season training videos.

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He entered the Saint Vincent College facility driving a fire truck with siren sounding and promised to top that effort next year.

Harrison also claimed he would parachute onto the field for a Pittsburgh game next season.