The full-back came to Posh from Norwich City in January 2022, but after scoring an FA Cup winning goal on his debut against Bristol Rovers he struggled. Mumba started just seven games for a Posh team destined for relegation from the Championship.
The 24 year-old has been at Plymouth for three-and-a-half years after initially moving to Devon on loan from ‘The Canaries’ and he was a star man in a Pilgrims team that won the League One title in the 2022-23 season.
Klaidi Lolos, who Posh have just loaned to Crawley Town, started his career at Plymouth.
Here are 10 more players who have represented Posh and Plymouth. How many do you remember?
5. SCOTT GRIFFITHS
Enthusiastic left-back who Posh signed from Dagenham & Redbridge for an undisclosed fee in January 2010 after a successful loan spell. He lasted one season which was spent in the Championship, making 21 appearances before he was farmed out on loan on six different occasions, including to Plymouth for whom he played 4 times. Luton Town eventually took him off Posh hands on a free transfer in 2013. Photo: Alan Storer
6. GERRY MCELHINNEY
Gerry from Derry was a cult figure at Posh for his old school defending. The central defender played a part in the 1990-91 Fourth Division promotion season during his 111 appearances for the club. He scored one goal. Posh had signed him from Plymouth in 1988 for whom he played close to 100 times. McElhinney was a boxer and a Gaelic footballer in his youth. He retired after Posh won that promotion and ran the club youth team for a year before leaving. Photo: David Lowndes
7. DAVE REGIS (right)
Well-travelled centre forward who was signed by Posh boss Barry Fry on loan from Barnsley in October 1996. He scored on his debut at Plymouth in a 1-1 draw when Bruce Grobbelaar was in goal for 'The Pilgrims,' but he didn't score again and returned to Oakwell after 4 games. Regis made 31 appearances in the 1991-92 season for Plymouth. Photo: Clive Brunskill
8. ANDY ROGERS
This Fenland-born winger started his career at Posh, playing 32 times and scoring once before going on to play more than 250 Football League games at other clubs. He enjoyed four good seasons at Plymouth and famously scored the FA Cup quarter-final goal direct from a corner which delivered a win for then Third Division Pilgrims at Derby County in 1984. It was their first semi-final appearance. Rogers made 195 appearances for Plymouth, scoring 19 goals and 'The Pilgrims' never lost when Rogers scored! He moved to Reading from Plymouth for 15k in 1985. Photo: David Lowndes