In youth football he played as a centre forward, only switching to goalkeeping while in the Royal Air Force stationed at Lossiemouth during the Second World War.
He signed for Chelsea in October 1945,[3] and played 43 times in all competitions for the first team[4] before moving to Birmingham City in December 1948.
This move failed to improve matters, as Robertson found himself behind Gil Merrick in the pecking order and played just three times in 3+1⁄2 years.
[1] He recovered from his injury and became first choice 'keeper under Taylor as Stoke failed to gain a return to the top-flight, narrowly missed out in 1954–55, 1956–57 and 1958–59 finishing 5th three times.
[1] Stoke had an awful 1959–60 campaign which saw Taylor sacked by the board and new manager Tony Waddington signed Everton's Jimmy O'Neill and Robertson decided to retire.