The 25-year-old winger has made over 120 English Football League appearances with Wycombe Wanderers, Colchester United and AFC Wimbledon. Senior started his career at Brentford, making his way through the academy before signing his first pro-contract in 2015. The winger also had a loan spell at Wycombe Wanderers before departing for Colchester. In 2016 Senior joined The U’s where he made 145 appearances and scored 14 goals across four seasons in Essex. He then moved to Newport County where he suffered a pre-season cruciate ligament injury which ruled him out for the season. Last season the winger had a short-term spell with AFC Wimbledon in League Two. He featured in 13 games, scoring once.