2019 Australian Open odds, predictions for semifinals: Red-hot tennis expert picks Nadal vs. Tsitsipas

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No. 2 seed Rafael Nadal, gunning for his second Australian Open title, faces 20-year-old Greek Stefanos Tsitsipas in the first semifinal. The match begins at 3:30 a.m. ET on Thursday (7:30 p.m. Thursday local time in Melbourne). Tsitsipas, the 14th seed, became the youngest player to reach an Australian Open semifinal in 16 years when he beat Roberto Bautista Agut in a four-set thriller. Nadal has won all five of his 2019 Australian Open matches in straight sets, with just one set going to a tiebreak. The Spaniard is favored by 5.5 games in the latest Nadal vs. Tsitsipas odds. On the money line, Tsitsipas is +450 (risk $100 to win $450), while Nadal is the -650 favorite (risk $650 to win $100).

There are plenty of ways to approach this match, so before you make any Nadal vs. Tsitsipas picks and tennis predictions, you'll want to see renowned tennis bettor Sean Calvert has to say given the streak he's on. Not only did Calvert nail the U.S. Open, calling Djokovic -1.5 sets in the final (a straight-set laugher over Juan Martin del Potro), he has displayed an uncanny feel for the Australian Open.

In 2014, Calvert called Stan Wawrinka's shocking Aussie Open triumph -- a legendary call that rewarded Calvert's followers with a 60-1 payout! That was the only time in the past 13 years someone not named Federer, Nadal or Djokovic won this event. And Calvert saw it coming.

This is the same expert who cashed in huge on John Isner winning the Miami Open at 100-1, a life-changing payout for those who followed Calvert's advice. He just nailed Daniil Medvedev winning the Tokyo Open at 45-1.

Now, Calvert has broken down the 2019 Australian Open semifinals and released a very confident pick on Rafael Nadal vs. Stefanos Tsitsipas. He's sharing it over at SportsLine.

Calvert knows that when Nadal faced Tsitsipas on his 20th birthday last August in Toronto, the Spaniard was cruising 6-2, 4-2 when the youngster made a big comeback. Nadal eventually prevailed 7-6 (7-4) in the second set (it was a best-of-three sets).

Calvert knows Tsitsipas gained confidence from that encounter. Even though this is his first Grand Slam semifinal, "he doesn't appear to be the type to suffer from nerves," Calvert told SportsLine.

Nadal also dealt with a string of injuries before the 2019 Australian Open. "There were definite doubts over Nadal's fitness as he came into this tournament, and against Frances Tiafoe he had abdominal tape on that area of his body," Calvert said, "but I'm assuming that's a minor issue."

Calvert, the unparalleled analyst, has locked in a detailed pick. He knows a critical X-factor determines which player has all the value, and which side of the match spread you should back. He's only sharing what it is over at SportsLine.

So who wins Nadal vs. Tsitsipas? And which side has all the value? Visit SportsLine now to see Sean Calvert's detailed Australian Open semifinal picks, all from the acclaimed expert who called Stan Wawrinka winning the 2014 Australian Open at 60-1.

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