As Novak Djokovic beat Stefanos Tsitsipas in the final of the Italian Open, his son, Stefan, won a club competition in Serbia.
The Norwegian Ruud came out as the victor after what was a thrilling contest that saw a brilliant tie-break in the very first set.
Day six saw third seed Rafael Nadal eliminated by Canada's Denis Shapovalov who recorded a fantastic comeback win.
The Greek edged out a 6-3, 5-7, 7-6 (7-4) win against Grigor Dimitrov to make it through to the next round of the competition.
After leading by a set and a break in the middle stanza, Alcaraz needed to regroup after Tsitsipas dominated the end of the game.
The Barcelona Open is one of the more important tournaments before the Roland Garros, therefore players will be eager to improve their game in a competitive setting on clay.
With the French Open only a few weeks away, Tsitsipas will be looking to take his game to the next level.
The third seed had a standout week, playing consistent and aggressive tennis to win his first title since winning in Lyon last May.
Zverev won a gold medal in the men's singles event, which has managed to elude those two superstars in an individual capacity.
Returning to the Monte-Carlo Country Club this week, the defending champion expressed his confidence and excitement.