Former tennis star Diego Schwartzman has criticised the decision to turn Indian Wells into a two-week event as a 'serious mistake'.

Tournament officials have divided opinion by spreading out matches across two weeks, which gives players more time to rest between matches. However, Schwartzman, who retired last month from tennis, thinks it was only done to generate more revenue for events.

"It was a serious mistake. The tournaments asked for that so they could have more revenue and distribute it among more players," he told Septimo Game.

"But in the end, if you think about where in the world the Masters 1000s are played, and forcing a player to not be able to play anything other than a Challenger in between, and not an ATP, the tours that have two 1000s in a row, which are many, is a month.

"If a player has a bad tour, not even losing both times in the first round, making the second, that's four matches in 28 days."