Former world No. 1 Andy Murray absolutely enjoyed watching Carlos Alcaraz and Stefanos Tsitsipas go against each other on the clay courts of Barcelona. Alcaraz, who became a Masters champion after beating Casper Ruud in the Miami Masters final, defeated Tsitsipas 6-4 5-7 6-2 in the Barcelona quarterfinal. It was the third meeting between the two and Alcaraz’s third victory over Tsitsipas. Alcaraz beat Tsitsipas when they clashed at the US Open last year and also beat the Greek en route to winning Miami. “Tsitsipas and Alcaraz are brilliant to watch.Loads of variety, great movers,” Mu …