ATP Tour tips: Stefanos Tsitsipas and Carlos Alcaraz looking good at Madrid Open

Carlos Alcaraz celebrate after winning singles quarter-finals match against Karen Kachanov at the Madrid Open - May 2023
Tennis tipster Derek Bilton says Carlos Alcaraz is looking unbeatable on clay at the moment, while Stefanos Tsitispas has been chipping away and looks solid enough to grab a place in the final.
Yet if Medvedev puts the 'p' in petulance, then Alcaraz is the very definition of excitement. A swashbuckling, high-energy player who never knows when he is beaten, he looks like the winner all the way this week and is an eye-watering 1/16 jolly to beat Borna Coric on Friday.
There's no value in that price but it could be worth backing Stefanos Tsitsipas' match against Jan-Lennard Struff to go the distance. Tsitsipas leads Struff 3-2 in the head-to-head.
He won their previous encounter - a feisty affair at the 2020 Vienna Open - in three sets, and four of their five previous matches have gone to a deciding set.
Over 2.5 set is a 15/8 poke with Planet Sport Bet and looks a decent bet given their previous.