Virat Kohli has no peers in ODIs but he has a priceless message for youngsters -- sole focus on limited overs formats shouldn't be an "excuse" for not being able to cope with the challenges of Test cricket.

World's No 1 batsman with 25 Test hundreds warned that youngsters will have mental problems if they don't embrace the pristine form of five-day cricket. "If we focus too much on shorter formats - yes, they're important - but if we solely focus and look at them as an escape or an excuse to not be in the kind of situations that Test cricket presents to you, then I think there will start being a mental problem with the cricketers coming up," Kohli was quoted as saying by Star Sports.