Alan Birchenall made his league debut a year after he was signed playing against Stoke City in September 1964.
10 Facts About Alan Birchenall
Alan Birchenall left Bramall Lane having played over 120 games for the club, scoring 37 goals and having the 'distinction' of being the first Blades player ever to be substituted in a League game.
Alan Birchenall missed Chelsea's win in the 1970 FA Cup Final due to injury.
Alan Birchenall later played for NASL sides the San Jose Earthquakes and the Memphis Rogues.
Alan Birchenall spent brief spells with Blackburn Rovers, Luton Town, Hereford United and Trowbridge Town where he was player manager.
Alan Birchenall was capped four times for the England Under-23's with his appearances being spread between his time at Sheffield United and Chelsea.
Alan Birchenall is currently club ambassador, which includes the role of pre-match and half-time host, at Leicester City.
Alan Birchenall ran a footwear company and The Griffin Inn in Swithland in Charnwood, Leicestershire following his retirement from playing.
Alan Birchenall is a patron of PROSTaid, a prostate cancer charity.
In 2002 Alan Birchenall was awarded an MBE for his charity work.