Just watched the highlights — always entertaining with these two. Definitely my favourite rivalry among the younger players.
Yep, it's a shame. You watch Tsitsi play and there are frequent moments in a rally where I'm just thinking 'man, if only he could do more damage with that backhand ...'. He actually nailed one DTL backhand in a rally with Medvedev and it clearly hurt him, not majorly, but got him slightly off balance as it was so unexpected.
Most of his game is great, but the weak points are really holding him back from flourishing/becoming dominant at the elite level.