On 11 March 1981, Arsenal signed Peter Nicholas from Crystal Palace for a reported £400,000.
The Wales international had been with Palace since 1976, making 127 League appearances while there.
During his time at Arsenal, the midfielder scored three goals and was a fan favourite due to his no-nonsense attitude to tackling and fearless nature.
Two seasons and 80 appearances for Arsenal later, he returned south to Palace. Firstly, on loan for a season and then permanently for £150,000.
Nicholas only spent two years with the Eagles before signing for Luton and later Aberdeen, Chelsea and Watford. He retired from playing football in 1993 but he returned to Chelsea to coach their youth team.
He then went to Brentford before once again returning to Palace to coach the same role their.
In total, he was capped 73 times for Wales and went on to manage there later in life, coaching at Barry Town, Newport County and Llanelli where he won the Welsh Premier League and Welsh League Cup.
Sources: Arsenal.com, Wiki.