Dembele was a star for Celtic in their Old Firm derby against Rangers at Hampden Park.
Former Celtic forward Watt was following the match, and the 24-year-old, who is a free agent at the moment, was impressed with the performance of Dembele.
Dembele has been on another planet today!— Tony Watt (@Tony_Watt7) April 15, 2018
Strength aswell! He’s a unit— Tony Watt (@Tony_Watt7) April 15, 2018
Over the course of the 90 minutes at Hampden Park on Sunday afternoon, Celtic had 53% of the possession, took 13 shots of which five were on target, and earned three corners, according to BBC Sport.
Rangers had 47% of the possession, took four shots of which two were on target, and earned seven corners, according to BBC Sport.
Brendan Rodgers’s side will face Scottish Premiership rivals Motherwell in the final of the Scottish Cup.