Serbian tennis player Novak Djokovic hits a return during his semifinal match against Russian Daniil Medvedev at the ATP Adelaide International tournament in Adelaide on Jan 7, 2023. (BRENTON EDWARDS / AFP)

ADELAIDE - Novak Djokovic overcame an injury scare midway through his match against Daniil Medvedev on Saturday to mow down the Russian 6-3 6-4 and storm into the Adelaide International 1 final, where he will take on unseeded American Sebastian Korda.

In a blockbuster Australian Open warm-up meeting between the two former world number ones it was 21-times Grand Slam champion Djokovic who shot out of the blocks quickest, as he surged to a 4-2 lead in the opening set.

Djokovic was in some discomfort in the seventh game after hyper-extending his left hamstring while stretching to make a forehand, but he soldiered on and pulled off an exquisite lob before taking a medical timeout for treatment.

The 35-year-old Serb claimed the opening set and raised his game at 3-3 in the next by producing a blistering return and a smooth pass at the net, before Medvedev surrendered his serve with a double fault on breakpoint.

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Russian tennis player Daniil Medvedev serves during his semifinal match against Serbian Novak Djokovic at the ATP Adelaide International tournament in Adelaide on Jan 7, 2023. (BRENTON EDWARDS / AFP)

Djokovic saved a break point with a 200 kilometers per hour second serve before holding firm from there to seal a comfortable victory.

I was trying to keep the momentum going and not allow him (Daniil Medvedev) to break my serve. That was the key. Eventually, I would get a chance. The longer the match went on, my hamstring got warmer and bothered me less.

Novak Djokovic, tennis player

"Thankfully it was nothing too serious," Djokovic said of his injury in an on-court interview. "If it was I wouldn't be able to continue. I took anti-inflammatory (medication) and settled in.

"I was trying to keep the momentum going and not allow him to break my serve. That was the key. Eventually, I would get a chance. The longer the match went on, my hamstring got warmer and bothered me less.

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"Hopefully for tomorrow it'll be fine."

The Jan 16-29 Australian Open will be without world number one Carlos Alcaraz following his leg injury and the organizers of the Melbourne Park major would have endured tense moments after nine-times champion Djokovic clutched his leg.

"... For me at this level, at this stage of my career and my life after quite a few years of professional tennis, every match counts and every match is a present in a way," Djokovic said.

"I try to give my best and win wherever I am."

Up next for Djokovic is Korda, who reached the final after Japan's Yoshihito Nishioka retired due to an injury with the score at 7-6(5) 1-0.