Britain's Sonay Kartal suffered a first-round defeat to Caroline Garcia at the Cincinnati Open.

The 23-year-old was beaten 7-5 4-6 3-6 by her French opponent, who won the 2022 tournament.

Garcia, the former world number four, will now face Karolina Muchova after the 31-year-old's first victory since 19 March, having announced in May, external she would retire later this year.

Kartal's loss followed first-round exits for fellow Britons Katie Boulter and Jacob Fearnley.

Boulter, 29, was beaten 6-0 7-5 by Serbia's Olga Danilovic, who will now face Emma Raducanu - who recently dethroned Boulter as British women's number one - in the second round.

Elsewhere, five-time Wimbledon champion Venus Williams went down to world number 42 Jessica Bouzas Maneiro.

The 45-year-old American received a wild card entry to Cincinnati after reaching the second round of the Citi Open in Washington last month, but was beaten 6-4 6-4 by her Spanish opponent.

Emma Raducanu brushed aside Olga Danilovic at the Cincinnati Open to make a confident start with her new coach.

The British number one has added Rafael Nadal's former coach Francis Roig to her team on a full-time basis as she prepares for the upcoming US Open.

And the surprise 2021 champion in New York cruised to a 6-3 6-2 win in her first match since the Spaniard came aboard.

Danilovic beat British number three Katie Boulter in the first round while Raducanu had a bye, and the Serbian number one broke Raducanu to love in the first game of Saturday's match.

This revamped US Open Mixed Doubles format is an absolute farce in my view, no need at all to change the format.

US Open Men's Odds (Coral)

J.Sinner 11-10f

C.Alcaraz 17-10

N.Djokovic 12-1

A.Zverev 18-1

B.Shelton 18-1

J.Draper 20-1

T.Fritz 28-1

D.Medvedev 40-1

A.De Minaur 66-1

H.Rune 66-1

A.Bublik 80-1

F.Tiafoe 80-1

A.Rublev 100-1

J.Fonseca 100-1

L.Musetti 100-1

Italian doubles specialists Sara Errani and Andrea Vavassori completed their "mission" by beating singles stars Iga Swiatek and Casper Ruud to win the controversially revamped US Open mixed event.

Errani and Vavassori, whose place in the new-look tournament was initially under threat, defended their crown with a thrilling 6-3 5-7 10-6 victory secured at almost midnight in New York.

The pair walked away with the increased prize pot of $1m (£740,000) designed to attract superstars like Swiatek, Carlos Alcaraz and Novak Djokovic - five times more than the $200,000 (£148,000) they won last year.

Enticing the singles players meant Errani and Vavassori were the only recognised doubles pairing in the 16-team draw.

"This is for all the doubles players who couldn't play this tournament," said Errani.

Vavassori added: "We have been on a mission."

US Open Womens' Odds (Coral)

I.Swaitek 13-5f

A.Sabalenka 3-1

C.Gauff 9-1

E.Rybakina 12-1

M.Andreeva 12-1

M.Keys 16-1

N.Osaka 20-1

V.Mboko 20-1

A.Anisimova 25-1

E.Raducanu 28-1

J.Paolini 33-1

J.Pegula 33-1

C.Tauson 50-1

A.Kalinskaya 66-1

E.Svitolina 66-1

K.Muchova 66-1

B.Bencic 80-1

L.Fernandez 80-1

D.Collins 100-1

D.Shnaider 100-1

E.Alexandrova 100-1

L.Noskova 100-1

L.Samsonova 100-1

M.Vondrousova 100-1

Medvedev out in R1 already!