Mumbai, March 29 -- Whether India's world champions are ready to roll all over again for another two-month T20 extravaganza in peak physical and mental shape will be known in the coming days when Mumbai Indians play their IPL opener against Kolkata Knight Riders. It will be a good indicator since the core of India's T20 best players is in that squad. Suryakumar Yadav and Hardik Pandya, who swap leadership bands from country to club, both had a decent batting net on Friday. Tilak Varma, young and learning, sweated it out too. Jasprit Bumrah joined the squad late and rested through the pre-match training on Saturday. For once, with the T20 World Cup slotted ahead of the IPL, coaches widely accept that players' bodies will take time to repair and recharge. With Indian players, having achieved their dream to win a world title at home after months of buildup, there is the small matter of overcoming the mental high too. "It was great to see that intensity, I mean it's a World Cup, it's the best stage in the world, that adrenaline is something that's difficult to match," said MI head coach Mahela Jayawardene. "Hence we gave them an extended period to take a break, spend some time with family and then come back fresh." Unlike Indians, the punishing calendar has meant some overseas players have been playing international cricket straight after the World Cup. Mitchell Santner played three T20Is at home against South Africa and will miss early matches for MI. So will England all-rounder Will Jacks. Jayawardene attributed the duo's absence to "personal reasons", adding the team understood their request to join late. The constant push and pull for player availability is evident from the growing list of overseas players who will miss early action in this year's IPL. Ben Duckett has pulled out of Delhi Capitals' duties to recharge batteries for future England endeavors....