Ex-tennis ace Boris Becker's daughter has set her social media on fire after flaunting her perfect figure in a barbie pink bikini in sunny Italy. Boris Becker, 55, poses with his mother Elvira Pisch, in undated photo. Boris Becker talks about the day his career as a professional athlete ended and he had an affir with Angela Ermakova that resulted in a child, in a new documentary. (@borisbeckerofficial/Newsflash) Anna Ermakova…