Going by the pictures posted by German tennis star Alexander 'Sascha' Zverev and Russian Olga Sharypova on their respective social media accounts, rumours are abuzz that they are dating.

Olga was with Zverev at the Shanghai Masters in October, but he had clarified, in an interview with Sky Sports Germany, that there is no romantic relationship between them. However, things seem to have got serious now after they went on a vacation together to the Maldives. Zverev posted this picture (above) on Instagram recently and captioned it: "Apparently, we are just friends."