M 1000 MIAMI OPEN.By Gabriel Matteazzi Italian Lorenzo Musetti, ranked 24th in the world, will face Spanish Carlos Alcaraz (ranked 2nd) in the Miami Open round of 16 this Tuesday after defeating American Ben Shelton (ranked 17th) in the third round on Monday. Musetti secured the victory against Shelton with a score of 6-4, 7-6(5)…