Canadian Bianca Andreescu takes down top seed Olesia Pervushina in Junior Orange Bowl International

Canada’s Bianca Andreescu, fresh off conquering her elders a week ago, put herself in position for a unique South Florida double Sunday at the Junior Orange Bowl International when she took down top seed Olesia Pervushina in the Girls’ 14s quarterfinals.

Andreescu grabbed an early advantage over her Russian foe and retained the upper hand all the way to a 6-4, 6-3 triumph at the University of Miami’s Neil Schiff Tennis Center. Last weekend, the Toronto native captured the Girls 16s crown at the Orange Bowl International in Plantation.

“I’m just staying focused,” said Andreescu, who sports a 19-match winning streak that began by winning an ITF event last month in South Carolina. “After [the Orange Bowl], I just refocused and started over for this tournament. It’s working.”

Andreescu, the No.5 seed, moved into a semifinal matchup against No.4 Taylor Johnson, who beat Russia’s Ulyana Shirokova 7-5, 4-6, 6-2. After an early deficit in the second set proved too much to overcome, Johnson gathered her mind-set and took control.

“I definitely slowed down and got a better attitude,” said the Arizona native, now living in Redondo Beach, California. “I just got back to my game. I was being aggressive and controlling the points.”

No.2 seed Anastasia Potapova of Russia also needed three sets to beat Caty McNally in a rematch of their final at this month’s Eddie Herr International, which Potapova also won. McNally, from Cincinnati, captured Sunday’s first set but faded late as Potapova prevailed 5-7, 6-4, 6-0.

“It was hard, of course,” Potapova said. “She’s a good player. I just played my game – keep getting the ball back in the court – and I won.”

Potapova next takes on Poland’s Iga Swiatek, who ousted Anna Brylin (Short Hills, New Jersey) in straight sets.

Israel’s Yshai Oliel, top seed in the Boys’ 14s, stayed on track in his quest for a Junior Orange Bowl double with a 6-1, 6-4 victory over No.5 Brian Shi (Jericho, New York). Oliel is seeking to become the ninth boy to follow a Boys’ 12s title with one in the older division.

“It was a very good game,” said Oliel, ranked No.3 in Europe and winner of the Boys 12s two years ago. “[Shi] is very good, but I think I just played better today. … When I can make the serve, it’s [an advantage].”

Oliel faces a semifinal match against Roscoe Bellamy (Pacific Palisades, California), the lone American remaining from a group that included nine of the top 10 in the U.S. rankings. Bellamy advanced with a 6-2, 6-4 victory over China’s Tao Mu.

“I really stepped it up [today],” said Bellamy, who won his first two matches this week without dropping a game. “I knew that every match had to be more physical and I had to have a higher intensity.”

It certainly gets no easier with Oliel standing across the net in the semifinals. “I’ll need to work his backhand,” he said. “I know his forehand is better.”

No.2 seed Sebastian Baez (Argentina) also advanced easily with a 6-0, 6-4 romp over Taiwan’s Chun-Hsin Tseng. He draws another Taiwanese opponent in the semifinals, after Chen-Jui Ho upended No.3 seed Keenan Mayo of Roseville, California 6-3, 6-3.

The Girls’ 12s will feature one All-American semifinal Monday, after Whitney Osuigwe knocked off top seed Qinwen Zheng (China) and Cori Gauff went three sets to defeat Leylah Fernandez (Canada).

Zheng had dropped only seven games through her first four rounds, but never threatened Sunday as Osuigwe (Bradenton, Fla.) romped 6-1, 6-4. Gauff, from Atlanta, eliminated the last qualifier standing by 6-0, 3-6, 6-2.

The other semifinal will feature Japan’s Himari Sato, another top seed, against Russia’s Alina Charaeva.

The Boys’ 12s saw two top seeds roll into the semifinals after straight-set wins by Croatia’s Borna Devald and Switzerland’s Jeffrey von der Schulenburg. Japan’s Daiki Yoshimura ended the run of local favorite Nicholas Garcia of Hollywood with a three-set victory.

Devald and Yoshimura will square off in one semifinal, and von der Schulenburg takes on Sweden’s Ross Weibull.