Stefanos Tsitsipas wrote the numbers '7784' on a camera lens after his win over Kei Nishikori at the Shanghai Masters, with the Greek later revealing the meaning behind the message.

Stefanos Tsitsipas has provided clarity on the seemingly random four-digit number he wrote on a camera lens after winning his opening Shanghai Masters match against Kei Nishikori on Friday. Tsitsipas ground out the first set via a tiebreak and kicked on in the second,

Stefanos Tsitsipas served sweet revenge after months of bad form on Friday when he defeated Japan's Kei Nishikori in straight sets to advance into the third round of the Shanghai Masters.