Jessica Canseco denies affair with Alex Rodriguez

Jennifer Lopez is still the only “J” in J-Rod.

Jessica Canseco denied her ex-husband Jose Canseco’s claims that Alex Rodriguez was cheating on Lopez with her, writing Tuesday on Twitter: “Those false accusations Jose is making are not true! I have known Alex for many years and haven’t even seen him for over 5. I certainly did not sleep with him. I am friendly with both him and Jennifer. As for Jose he can keep playing with his Alien friends.”

She later added: “In fact I don’t even get on twitter had to download app again and don’t watch tv and had no idea any of this was going on. Last time I saw Alex he was with Torrie and I brought my boyfriend over for dinner. We are just friends my god.”

Jose, 54, first blasted Rodriguez, 43, after Rodriguez proposed to Lopez, 49, on Saturday.

“Watching World of Dance watching J.Lo text Alex Rodriguez little does she know that he is cheating on her with my ex-wife Jessica poor girl she has no idea who he really is,” he tweeted. “I was there a few months back with her when he called her on her phone.”

Jose’s rep didn’t immediately get back to us.