Italian tennis star Fabio Fognini says Carlos Alcaraz is definitely an outstanding talent but adds it might be a bit too much to compare the 18-year-old with record 21-time Grand Slam champion Rafael Nadal. Alcaraz, 18, is having an outstanding start to the year and some believe he could become a Grand Slam champion and reach the top-5 this season. After winning Rio de Janeiro in February, Alcaraz won his first Masters title in Miami. Following his Miami victory, Alca …