Los Angeles (AFP) - Three National Basketball Association titles notwithstanding, Cleveland Cavaliers superstar LeBron James can relate to the Cleveland Indians' World Series heartbreak.

The Indians lost the last three games of Major League Baseball's championship series as the Chicago Cubs secured a victory that ended the longest title drought in US sport - one that stretched back more than a century.

"You never get past the pain," said James, who was on teams that fell to the San Antonio Spurs in the NBA Finals in 2007 and in 2014.

He has also endured championship series defeats by the Dallas Mavericks and Golden State Warriors.

"I still think about and dream about or have nightmares about losing in the Finals," James said. "I've lost many times in the Finals, I've won a few as well. But you never get past the pain."

James and the rest of the Cavaliers - who brought Cleveland its first sporting title since the Browns' 1964 NFL crown when they beat the Warriors in the NBA Finals in June - were avid followers of the Indians' title bid.

James even had a friendly wager with former Miami team-mate Dwyane Wade, newly transplanted this season to the Chicago Bulls.

In congratulating the Cubs via social media, Wade made it clear he expects James to fulfil the terms of the bet and turn up in full Cubs regalia when the Cavaliers visit the Bulls in Chicago on December 2.