Mascarenhas will miss the start of the English season through injury
Hampshire captain Dimitri Mascarenhas is set to miss up to two months of the new county season after suffering an Achilles injury.
The 32-year-old flew home early last week from the Indian Premier League tournament after picking up the knock.
Hampshire manager Giles White told BBC Radio Solent: "The injury is a little worse than originally feared, but that's the worse case scenario."
The all-rounder underwent surgery on an ankle injury earlier during the winter.
But this new blow also looks set to rule him out of contention for the ICC World Twenty20, which starts on 30 April in the West Indies, after he was named in England's provisional 30-man squad which will be reduced to 15 players for the tournament itself.
Mascarenhas has played in 20 one-day internationals and 14 Twenty20 internationals for England, including both previous World Twenty20 events in 2007 and 2009.
Having been the first English player to sign for the IPL in 2008, he was playing for Rajasthan Royals for the third successive season.
He signed for Australian state side Tasmanian Tigers during the winter and played for New Zealand outfit Otago Volts in 2008/09, but has previously been troubled by a knee injury which prevented him from playing for the Tigers.