Floyd Mayweather rides the 'Friendship Train' as he poses for a picture with Motown legend Gladys Knight 

In four days time, Floyd Mayweather will go head-to-head with Manny Pacquiao in the Fight of the Century at the MGM Grand but he still had time to pose for a picture with Motown legend Gladys Knight.

Mayweather meets rival Pacquiao on May 2 in Las Vegas in the highly-anticipated blockbuster, which saw tickets sell out within 60 seconds on Ticketmaster last week.

As he steps up his preparation for Saturday's fight, Mayweather took time out of a training session to pose for a picture with 'Midnight Train To Georgia' singer Knight.

Motown legend Gladys Knight posted a picture on Twitter with Floyd Mayweather during a training session

Motown legend Gladys Knight posted a picture on Twitter with Floyd Mayweather during a training session

Mayweather will go head-to-head with Manny Pacquiao in the Fight of the Century at the MGM Grand on May 2 

Mayweather will go head-to-head with Manny Pacquiao in the Fight of the Century at the MGM Grand on May 2 

Knight tweeted: 'The champ @FloydMayweather and I! So good seeing you dear! #TheChamp #FloydMayweather.'

Mayweather retweeted the post to his 5.8million followers and earlier in the day, he thanked Knight for watching him in the gym. 

The 38-year-old tweeted to his followers: 'Thank you @MsGladysKnight for coming to support me at the gym today.'

Mayweather is expected to get £120m from the fight, the biggest event in the history of boxing, with Pacquiao.

Mayweather loosens up before he takes part in a training session at the Mayweather Boxing Club

Mayweather loosens up before he takes part in a training session at the Mayweather Boxing Club

Knight (left) is best known for singing hits such as 'Midnight Train To Georgia' and 'Friendship Train'

Knight (left) is best known for singing hits such as 'Midnight Train To Georgia' and 'Friendship Train'

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