London: Madonna, who denies an affair with baseball star Alex Rodriguez, has taken another swipe at ex-hubby Guy Ritchie by dressing their son Rocco in a New York Yankees T-shirt.

Thesun.co.uk reports that the excited Rocco, eight, arrived at a Big Apple gym sporting the team logo worn by Yankees baseball idol Rodriguez.

Sources say that seeing her parading their son in the Rodriguez's team colours will upset Guy.

Madonna, 50, is making secret plans to meet up with Rodriguez next month. They two might share a long weekend in a Miami bolt-hole.

“Madonna’s team has be gun scouting homes for rent. She and Alex are definitely aiming to get together before Christmas,” said the source.