Rohan Dennis (Jumbo-Visma) has announced that the 2023 season will be his last as a professional rider.

Dennis, of Australia, revealed the news in an Instagram post on Friday afternoon.

"Melissa Dennis, thank you for all your support throughout my professional career.

"Still a long season ahead, but definitely my last as a professional.

Dennis has raced for Garmin, BMC, Bahrain, Ineos Grenadiers, and his current team.

During this time, Dennis has won 32 races, including two world time trial victories in 2018 and 2019, a Commonwealth Games time trial victory in 2022, and four Grand Tour stage wins (including an individual time trial).

The 32-year-old Dennis has also won four Australian time trial titles and holds the world hour record for the distance of 52.491 km between February and May 2015.

Dennis' time trial abilities have resulted in major stage results throughout his career, including wins at the Tour Down Under, USA Pro Challenge, Tour de la Provence, and podiums at Tirreno-Adriatico and Tour de Suisse.

He also played a key role in Tao Geoghegan Hart's 2020 Giro d'Italia win as a super-domestique.

Dennis studied at the Australian Institute of Sport and raced on the road and track. He won the Tour of Alberta and took the best young rider jersey at the Criterium du Dauphiné.

The following year, however, he moved to BMC mid-season and helped the U.S. team win one of the two team time trial rainbow jerseys at the World Championships that year.

In 2015, Dennis won the Tour Down Under and the US Pro Challenge, and in Utrecht he won yellow in the fastest time trial in Tour de France history. He then enjoyed his most productive season, winning 17 races, including his first world title in Austria, before moving to Bahrain.

But the move to Bahrain was short-lived, as he abandoned the Tour de France and left the team after only eight months; in September, he rode a BMC bike to another time trial world title.

A move to Ineos Grenadiers for the pandemic-plagued 2020 season slowed his win total, but his ride on stage 18 of the Stelvio Pass stood out, helping Geoghan Hart win the maglia rosa.

Earlier this year, Dennis appeared to have broken the COVID-19 lockdown rule in Spain, "cracking and leaving home.

In the past two seasons, Dennis has won stage victories at the Tour de Romandie and Volta a Catalunya with Ineos, a time trial bronze medal at the Tokyo Olympics, and the Australian title with Jumbo Visma, most recently this month at the Tour Down Under in the last 1 He won the second stage with an attack in the last kilometer.

Dennis was sick last season at the Tour de Suisse and was left out of Jumbo-Visma's Tour de France squad. It is unclear whether he will compete in the Grand Tour in July this season, but his challenge for the road world championships and his third time trial title will likely be his last race as a professional.

"I don't know yet whether it will be the Giro or the Tour. Of course, the Tour will be a prelude to the World Championships in 10 days time, and the World Championships time trial is a race I would like to try again."

"I'm not sure if I'll be racing in the Giro or the Tour.

"The time trial course is back where it should be, over 40 km. I think it should be closer to one hour."