The 24-year-old then pounced with Lehecka serving at 4-5, reaching match point with a searing backhand pass and wrapping up victory as his opponent netted a backhand.
Images from Day 2 of the 2022 Australian Open in Melbourne on Tuesday.
Images from Day 7 of the 2022 Australian Open at Melbourne Park on Sunday.
Images from Day 1 of the Australian Open in Melbourne on Monday.
IMAGES from Australian Open matches played at Melbourne Park on Friday
Images from Day 1 of the 2023 Australian Open at Melbourne Park on Monday.
Coco Gauff claimed the biggest win of her young career on Friday with a stunning upset of defending champion Naomi Osaka at the Australian Open to reach the fourth round. Caroline Wozniacki and Serena Williams also lost their respective matches earlier in the day. Images from Day 5 of the Australian Open played at Melbourne Park on Friday.
Images from Sunday's action at the Australian Open.
Images from Day 8 of the 2022 Australian Open at Melbourne Park on Monday.
Images from Day 9 of the 2022 Australian Open, at Melbourne Park, on Tuesday.
Images from Day 5 of the 2023 Australian Open at Melbourne Park on Friday.
IMAGES from the action from the Australian Open at Melbourne Park on Thursday.
Images from Day 1 of the Australian Open in Melbourne on Monday.
Skipper Alyssa Healy led from the front with a masterful 142 as Australia pulled off a record chase of 331 to beat India by three wickets in their Women's World Cup group match on Sunday.
Images from Day 3 of the Australian Open in Melbourne on Wednesday.
Images from Day 6 of the 2022 Australian Open at Melbourne Park on Saturday.
Garbine Muguruza stormed back into the Grand Slam big time with a 7-5, 6-3 win over Russian Anastasia Pavlyuchenkova to reach her first Australian Open semi-final. Fourth seed Simona Halep advanced to her second Australian Open semi-final with a 6-1, 6-1 demolition of Estonia's Anett Kontaveit in just 53 minutes on Rod Laver Arena.
Ash Barty has become the first local woman to reach the final of an Australian Open in 42 years.
IMAGES from the Australian Open on Tuesday.
Spain's Rafael Nadal was at his dominant best against Pablo Carreno Busta on Saturday, brushing aside his compatriot 6-1, 6-2, 6-4 to move into the fourth round at the Australian Open. Images from Day 6 of the Australian Open at Melbourne Park on Saturday.
Images from Day 10 of the 2022 Australian Open in Melbourne on Wednesday.
Who is up to what outside the courts of Melbourne Park at the Australian Open? Find out here!
Images from Day 5 of the Australian Open in Melbourne on Friday.
Serena Williams squandered four match points and blew a 5-1 lead in the decider to fall to seventh seed Karolina Pliskova 6-4 4-6 7-5 in the quarter-finals of the Australian Open.
Images from the matches played on Day eight of the 2018 Australian Open at Melbourne Park on Monday
Images from the matches played at the Australian Open on Monday.
Images from Day 3 of the Australian Open in Melbourne on Wednesday
Images from Day 9 of the 2020 Australian Open in Melbourne on Tuesday.
A disbelieving Magda Linette continued her dream run at the Australian Open on Wednesday with a stunning victory over former world number one Karolina Pliskova to move into the semi-finals.
A rampaging Roger Federer delivered a stunning reminder of his class at the Australian Open on Friday with a crushing 6-2, 6-4, 6-4 win over Tomas Berdych to storm into the fourth round.
Images from all the action on Day 4 of the Australian Open in Melbourne on Thursday
Images from Day 6 of the Australian Open in Melbourne on Saturday.
Images from Day 8 of the Australian Open in Melbourne on Monday.
IMAGES from all the action on Day 8 the Australian Open on Monday
Images from the Australian Open in Melbourne on Thursday.
Sania Mirza and Rohan Bopanna went down to the Brazilian duo of Rafael Matos and Luisa Stefani in the mixed doubles final at the Australian Open on Friday.
IMAGES from the Australian Open matches played at Melbourne Park on Wednesday
Images from all the action on Day 3 at the Australian Open in Melbourne on Wednesday
Elise Mertens and Aryna Sabalenka beat Czech pair Barbora Krejcikova and Katerina Siniakova 6-2, 6-3 to win the Australian Open women's doubles title on Friday for their second Grand Slam trophy together.
IMAGES from the Australian Open matches played on Monday