Carlos Alcaraz won his first match since his victory at Wimbledon, beating David Goffin at the Hopman Cup in France.
The Spaniard beat 23-time Grand Slam champion Novak Djokovic on Sunday to win the Wimbledon title.
The Hopman Cup is an international mixed-teams indoor tennis tournament.
The event made its return this week after a four-year absence, having been replaced by the short-lived ATP Cup men's team event.
Alcaraz did not have the smoothest transition back to clay on his debut in the event.
The 20-year-old dropped his serve twice to surrender the opening set to Goffin, but responded by levelling the match before he came from 0-4 down in the super tie-break to wrap up victory.