Barcelona Open tournament director David Ferrer is disappointed because Rafael Nadal won’t be playing at the tournament this week but he is thrilled to have the likes of Stefanos Tsitsipas and Casper Ruud. Tsitsipas, 23, has become a regular guest at the Barcelona Open as he is making his fourth consecutive appearance at the tournament. Tsitsipas reached Barcelona finals in 2018 and 2021, losing to Rafael Nadal on both occasions. Nadal, a record 12-time Barcelona champion, is skipping this year’s event as he is still recovering from a stress fracture in one of his ribs. “I am very happy to hav …