Multiple choice Who made the world record of winning 14 Grand slams? Pete Samprass Andi Agassi Roger Federer None Reveal answer Fill a bubble to check yourself A Correct answer Explanation Pete Sampras was the first player to win 14 Grand Slam singles titles, a record he held until Roger Federer and later Rafael Nadal surpassed it. Sampras achieved this between 1990 and 2002.