An Autographed Card Sold for $4.6 Million. Did Luka Doncic Really Sign It?

By BY JASON M. BAILEY from NYT Sports Handwriting experts disagree about whether the N.B.A. star’s signatures could be from one person. And collectors have brewed a bigger conspiracy theory — that Doncic’s mother signed his cards.https://nyti.ms/3mp8Pom

Priceless? Even Olympic Medals Can Be Had for the Right Price

By BY NEIL VIGDOR from NYT Sports Some former Olympians have resorted to selling their medals because of financial hardships or to raise money for charity.https://nyti.ms/3zZ9Rvr

What Does It Take to Be Like Mike? 1,264 Ticket Stubs

By BY SCOTT CACCIOLA from NYT Sports He didn’t have to be there: Andrew Goldberg is trying to collect ticket stubs from each of Michael Jordan’s regular-season, playoff and All-Star Games.https://nyti.ms/3xGdZj7

The Pandemic Has Diminished Part of Athletes’ Jobs: Signing Autographs

By BY GERALD NARCISO from NYT Sports Even where spectators can attend sports events, physical buffers between them and the athletes often prevent autograph seeking. Players and fans miss the interaction.https://nyti.ms/3keQ6ZY

Augusta’s Green Jackets: For Winners, Members (and Buyers) Only

By BY ALAN BLINDER from NYT Sports The club’s green jackets — awarded to its members and Masters winners — are not supposed to leave its grounds. A rare few have, becoming an expensive holy grail for memorabilia collectors.https://nyti.ms/2GU3nbp

Terry Cannon, Creator of an Alternative to Cooperstown, Dies at 66

By BY RICHARD SANDOMIR from NYT Sports His Baseball Reliquary collects quirky artifacts and honors people who wouldn’t ordinarily be elected to the more august Baseball Hall of Fame.https://nyti.ms/3fFlNHZ

For Sale: Serena Williams’s Broken Racket. Yes, That One.

By BY STUART MILLER from NYT Sports The racket Williams broke in her chaotic United States Open final against Naomi Osaka in 2018 has become an unusual piece of sports memorabilia.https://nyti.ms/35gq7ZL

Mariano Rivera’s Priceless (and Pricey) Gifts on Display at Cooperstown

By TYLER KEPNER from NYT Sports His autographed ball sells for $699 at the gift shop. But there is another on display that is priceless.https://nyti.ms/2xYWddO

Kareem Abdul-Jabbar Puts Memorabilia Up for Auction

By FIELD LEVEL MEDIA from NYT Sports The auction includes four N.B.A. championship rings.https://nyti.ms/2ToxWu8

Kirk Gibson’s Home Run Ball Is Still Gone, Probably Forever

By JAMES WAGNER from NYT Sports The ball the injured Dodger sent into the stands in the 1988 World Series never turned up publicly. If it did now, who would believe it?https://nyti.ms/2Ptr6Bi

Tossing a Baseball to Fans Isn’t So Simple Anymore. Some Players Like That.

By JOE LEMIRE from NYT Sports Longer protective netting has made it hard for players to flip souvenirs to chosen fans. Now they often throw a ball over the net and up for grabs, which removes the stress of picking a recipient.https://nyti.ms/2CUiDlD