Argentine football legend Lionel Messi gave the 2018 FIFA World Cup ball - Telstar 18 - the thumbs up when he launched it in Moscow, earlier this month. "I was lucky enough to get to know this ball a bit earlier and I managed to have a try with it. I like all of it - the new design, the colours, everything," Messi said then. But what is a boon to a striker could be a bane to goalkeepers. However, in the case of this ball, it's a perfect balance for both, says Indian Super League outfit, Mumbai City FC goalkeeper Amrinder Singh. "The ball is light and can pose a challenge to goalkeepers but we 'keepers thrive on challenges," Amrinder, 24, told mid-day as he tests the ball during a training session at the Navi Mumbai Sports Association ground in Vashi on Monday.