Abner Mares vs. Eric Morel April 21st ?

Bantamweight titlist Abner Mares (23-0-1, 13 KOs), who won a clean, lopsided decision in his rematch with former titleholder Joseph Agbeko on Dec. 3 after their controversial first fight in August, is being penciled in to return to Showtime on April 21, Golden Boy promoter Richard Schaefer told ESPN.com.

Schaefer said he met with Mares and his team on Tuesday to talk about the fighter's next bout, which the promoter said could come against former flyweight titlist Eric Morel (46-2, 23 KOs), who is also with Golden Boy and won on the Mares-Agbeko II undercard.

Schaefer said the card could take place in Mexico City or Cancun. Although Mares lives in Southern California, he was born in Mexico and represented the country in the 2004 Olympics.

"I think it is important that he fights at least once a year in Mexico," Schaefer said.

Schaefer said he would like to make the proposed card a tripleheader and also include Anselmo Moreno (32-1-1, 11 KOs), another bantamweight titleholder, who dominated Vic Darchinyan in a title defense on the Mares-Agbeko II undercard, and former junior lightweight titlist Jorge Linares (31-2, 20 KOs), who would be returning from his 12th-round knockout loss to Antonio DeMarco in October in a fight for a vacant lightweight title.