[3][4] He had to wait nearly four years for his first-team debut, which came on 7 March 1956, deputising for the injured Roy Warhurst in a First Division game at Huddersfield Town which finished 1–1.
One of several players tried in the half-back line in the run-up to the 1956 FA Cup Final, Linnecor was not selected for that game.
He played 11 times in the following season,[5] and in April 1957 was sold to Lincoln City as a makeweight in the £15,000 deal which took Dick Neal in the opposite direction.
[6] After narrowly avoiding relegation from the Second Division in 1957, Linnecor remained at Lincoln for the rest of his Football League career, a further seven full seasons, during which he scored 55 goals from 287 appearances in all competitions.
[4][8] In the 1964 close season, Linnecor left Lincoln, by then in the Fourth Division, and moved into non-league football with Boston, newly formed and playing in the Lincolnshire League.