The Giro d’Italia has been postponed due to the coronavirus pandemic and the Tour de France and Vuelta a Espana could follow suit.
There has been speculation that the three-week races could be moved into the autumn, if the situation has improved by then, or shortened to fit into the calendar.
Tour de France
Classy Cavendish makes the time-cut with minutes to spare
07/07/2021 AT 18:54
However, Italian rider Trentin is in favour of a “one-shot event to restart all together”.
"Why not organize only one GT this year? Start in Rome, passing through Madrid, finish in Paris. All the best on the start and a great way to reunite all the people with a bike race after this horrible time," Trentin wrote on Twitter.
"To be more clear. Normal race length. 21 stages, 7 (France), 7 (Italy), 7 (Spain), 2 rest [days]. And most important: is one shot event. To restart all together. 2021 back on normal business."
France's sports minister Roxana Maracineanu has said it is of “paramount importance” that the Tour de France goes ahead.
The race is currently scheduled to run from June 27 - July 19 while the Vuelta is planned to start on August 16.

Wiggins podcast: 'Frightening' coronavirus impact on cycling

Tour de France
'The guy nearly died!' - Froome 'warrants more respect' - Wiggins podcast
29/03/2021 AT 11:06
Tour de France
Plenty for Froome to work on before Tour - does he have time to get it done?
18/03/2021 AT 15:43