Plans are in the works for the “Superfly 3” card, promoter Tom Loeffler told ESPN. The card is penciled in for Sept. 8 (HBO) at a Southern California site to be determined. The probable main event would pit 115-pound world titleholder Srisaket Sor Rungvisai (44-4-1, 39 KOs), 31, of Thailand, against Juan Francisco Estrada (36-3, 25 KOs), 28, of Mexico, in a rematch of the fantastic battle they waged in the main event of “Superfly 2” on Feb. 24 at The Forum in Inglewood, California, where Sor Rungvisai won by hard-fought majority decision.