TURIN, Italy :Two days ago Alex de Minaur was in a dark place after letting victory over Lorenzo Musetti slip from his grasp, but a win over Taylor Fritz at the ATP Finals on Thursday has the Australian feeling on top of the world, and into the semi-finals.

On Tuesday, De Minaur held a 5-3 lead in the deciding set against Musetti, but the Italian made an incredible comeback in Turin by winning four consecutive games, and having already lost to Carlos Alcaraz, the Australian looked down and out.

Fast forward to Thursday, and De Minaur was full of energy in a 7-6(3) 6-3 win over last year's losing finalist Fritz, outplaying the American with boundless enthusiasm and restoring his love for the sport.

"A couple of days ago was one of the toughest days I've had in my career," De Minaur said.

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