Mason Rudolph out ... Matt Harvey in???
TMZ Sports has learned the MLB pitcher chatted up Genie Bouchard at a music festival in Miami just weeks after the tennis star broke up with her longtime BF -- and it's got us all wondering, are the two now igniting a new romance?
We obtained a picture and video of Bouchard with the baseball player at Ultra on Saturday night ... and while we're told there was no kissing, touching or feeling going on -- it seems apparent Harvey was interested in getting her ear.