More usually seen on the left wearing shirt number 11, in 1988 he switched to the right (and shirt number 14) to accommodate Chris Oti: in 1990 on the right opposite Mark Bailey, but on the left when partnering Simon Halliday, continuing on the left in 1991 opposite Nigel Heslop: in the 1991 World Cup he played on the right in partnership with Oti early on, then on the left in partnership with Heslop until the quarter-final and Halliday for the final two rounds, an arrangement that persisted throughout the 1992 Five Nations championship - which was initially billed as his final season before retirement, Underwood scoring tries in each of the first three matches of the championship, and coming close to scoring against Wales.