Roger Federer's 20th major title outfit could fetch $35,000

Roger Federer's advice for 'young guns' at Laver Cup (0:27)

Roger Federer gives advice to the young players who will headline at Laver Cup 2023 in Vancouver. (0:27)

NEW YORK -- Looking for an "inexpensive" way into the lucrative sports memorabilia market? One of Roger Federer's match-worn outfits might be your ticket.

Not just any shirt and shorts, of course. An online auction that starts Wednesday is offering a Federer outfit from his winning run at the 2018 Australian Open. That was his 20th and final Grand Slam title.

The Nike-made outfit is "expected to achieve up to $35,000," Prestige Memorabilia said. Both items are signed by the Swiss great, who retired one year ago. Bidding closes Oct. 8.

A mint-condition Mickey Mantle baseball card sold for $12.6 million in August 2022. That broke a record for an auctioned piece of sports memorabilia set a few months earlier, when the shirt worn by Diego Maradona when he scored the controversial "Hand of God" goal against England in the 1986 World Cup went for $9.3 million.