Jannik Sinner is the world's No. 1-ranked tennis player right now. And this honor is well-deserved, given that Sinner has won the past three tournaments he has competed in, with the most recent being the Monte Carlo Masters, where he defeated Carlos Alcaraz (who had been ranked No. 1) in the championship. Sinner is looking to keep this impressive streak alive at the Madrid Open. He cruised past Spain's Rafael Jodar in the quarterfinal in two sets on April 29 and will now be taking on France's Arthur Fils on May 1. Jannik Sinner of Italy | Mike Frey-Imagn Images While Sinner is entertaining enough on the court, many tennis fans also get a lot of enjoyment from seeing whether his girlfriend, Danish model and content creator Laila Hasanovic, is spectating him from the stands. Sinner and Hasanovic have been going strong for about a year at this point.…