Do son in law/father in laws count. Who could forget Ashley Ward and his distinguished career at City!?(one of about 300 different clubs he seemed to play for)
Without getting too much into Hello magazine territory, he's married to someone from The real housewives of Cheshire and their daughter married Riyad Mahrez didn't she!
Have to say our old mate FFS probably remembers his City career a little more fondly I reckon. Thr only time I remember seeing Ashley Ward play he came on as a sub and was later substituted himself. His namesake (but definite non brother/dad/son etc..) Mark Ward was a better player around the same time.