By Caroline Gaspich Lady Gaga was spotted strategically covering up her ring finger during a tennis match this week after sparking engagement rumours with her longtime boyfriend, Michael Polansky. As the former A Star is Born star hit the courts for a match with her beau Michael, she seemed to purposefully hide her ring finger underneath her sleeve, fueling ongoing speculation they’ve secretly gotten engaged. In the snaps, the 38-year-old singer showed off her eccentric sense of style as she stepped out in a neon-yellow sweater paired with a matching sparking white-and-yellow tennis skirt for …