From my personal experience, Goal.com has always been a reliable source.
http://m.goal.com/s/en-gb/news/2892/transfer-zone/2017/06/06/36148822/man-city-want-mendy-bertrand-as-part-of-four-man-full-back?utm_referrer=https%3A%2F%2Fwww.google.co.uk%2F
Saying BOTH Mendy and Bertrand are targets...