Montreal's Gabriel Diallo climbs 31 spots to 87th in ATP rankings

Canada's Gabriel Diallo moved into the top 100 of the ATP Tour rankings for the first time Monday, rising 31 spots to No. 87 after reaching the final of the Almaty Open.

Diallo upset four top-100 players — including 21st-ranked Alejandro Tabilo of Chile and 30th-ranked Francisco Cerundolo of Argentina — to reach his first career ATP Tour final.

The 23-year-old from Montreal forced a decisive third set against 24th-ranked Karen Khachanov of Russia before dropping a 6-2, 5-7, 6-3 decision on Sunday.

Two other Canadians were in the top 100.

Felix Auger-Aliassime of Montreal rose two spots to No. 19 and Denis Shapovalov of Richmond Hill, Ont., fell three positions to No. 95.

WATCH | Diallo falls to Khachanov in Almaty final on Sunday:

Canada's Diallo fails to secure Almaty Open title with loss in final

U.S. Open champion Aryna Sabalenka is officially No. 1 in the WTA rankings again after ending Iga Swiatek's 11-month reign.

Sabalenka led Swiatek by 41 points in the latest rankings published Monday, overturning a 69-point deficit from the week before, even though neither of the two played last week.

Instead, the Belarusian took back the No. 1 spot following "continuing year-end adjustments for falling short of certain tournament quotas," the WTA said.

Sabalenka, who was previously top of the rankings from September through November last year, laid the groundwork for regaining the No. 1 spot when she won the Wuhan Open on Oct. 13.

Top-ranked Canadian Leylah Fernandez from Laval, Que., dropped one spot to No. 35, while North Vancouver's Rebecca Marino climbed 18 positions to No. 118 in the world. Marina Stakusic and Bianca Andreescu, both from Mississauga, Ont., are ranked 140th and 159th, respectively

Swiatek has taken