England opener Alistair Cook has called on the game's rulers to ensure that Test cricket remains the most important form of the game.
His request comes on the back of his side's drawn two-Test series with Sri Lanka in which both teams wanted a third match but were unable to find a suitable date after squeezing the matches in between the Asia Cup and the IPL.
Cook, who was this week named as one of Wisden's Five Cricketers of the Year, has long campaigned for the longer form of the sport to be protected following the emergence of a number of more glamorous shorter tournaments.
The Essex batsman says he understands the need for both one-day matches and T20s in terms of building a fanbase for the game but has called on the authorities to ensure that Test matches don't become redundant.
"You ask most players what is the highlight of their career, it will always be something to do with Test cricket," he said.
"Everyone at the end of the Sri Lanka series, especially the people watching, would have loved a decider.
"Twenty20 has been great for the game and has brought spectators through the gate but you have to protect Tests and the cricket authorities will always have to try to do that.
"If there are at least three matches in a series, it will give both teams better chances to win that series.