Montreal's Diallo through to 1st ATP semifinal with upset of Tabilo at Kazakhstan event

Montreal's Gabriel Diallo advanced to his first career ATP Tour semifinal with a 3-6, 6-3, 6-4, upset of Chile's Alejandro Tabilo on Friday at the Almaty Open tennis tournament in Kazakhstan.

The 23-year-old, currently ranked 118th on the ATP Tour, had six aces without committing a double fault and was broken just once in the match that lasted just under two hours.

Diallo took control of the match when back-to-back unforced errors by Tabilo gave him a break to go up 2-1 in the third set.

The Canadian held serve the rest of the way, winning the match with an ace.

The six-foot-eight Diallo will next face fourth seed Francisco Cerundolo of Argentina at the ATP 250 event.

Tabilo, who was born in Toronto and represents his parents' country of birth, was ranked No. 2 at the tournament and was looking for his third title of the year.

WATCH: Diallo advances to semifinals: 

Gabriel Diallo of Montreal advances to his 1st career ATP Tour semifinal

Montreal's Felix Auger-Aliassime was eliminated in the quarterfinals of the European Open tennis tournament with a 3-6, 6-2, 7-6 (6) loss to Spanish veteran Roberto Bautista Agut on Friday in Antwerp, Belgium. 

Auger-Aliassime fired 19 aces in the match, but struggled to stay consistent after a dominant first set.

Bautista Agut forced three errors from Auger Aliassime, including on the final two points, in the third-set tiebreaker to win the match in two hours 42 minutes.

The Spaniard evened his career record with Auger-Aliassime at 3-3.

WATCH: Auger-Aliassime ousted in Belgium:

Auger-Aliassime eliminated in quarterfinals at the European Open

Auger-Aliassime, seeded third in Antwerp, was coming off a three-set win over Hungary's Marton Fucsovics on Wednesday that ended a