Jermain Defoe says returning to Rangers would be a ‘no-brainer’ following Russell Martin’s exit.The Scottish giants sacked Martin on Sunday after just four months in charge at Ibrox.Martin was sacked by the Scottish giants on Sunday after just four months in chargeGettyHe was dismissed following a 1-1 draw at Ibrox, leaving Rangers in eighth and 11 points adrift of leaders Hearts.Steven Gerrard, Danny Rohl and Derek McInnes are among the candidates to succeed Martin in the dugout, talkSPORT understands.Gerrard guided the club to their last league title without losing a match during his previous spell in charge.Defoe was part of that squad during the 2020/21 season, having been signed by Gerrard two years earlier.Defoe wants Rangers returnThe 43-year-old would jump at the opportunity to return to Glasgow if given the opportunity – in whatever capacity.He told talkSPORT’s Jim White: “I’ll be straight on that flight or train. I think it’s well documented how much I love that football club.“The boy from the East End, (at the) back end of his career, goes to a club like Rangers. I was a massive Coisty (Ally McCoist) fan when I was a kid.“I was privileged enough to play for the football club. I understood what it meant to play for the football club and the badge.“If I had the chance, and I’ve said it many times, if I had the chance to go to that club in any sort of capacity, for me, it’s a no-brainer.”Defoe joined Rangers in January 2019 on an initial loan deal from Bournemouth.Defoe’s former Rangers manager Gerrard is amongst the candidates to replace MartinHis switch from the Cherries was made permanent the following summer after his temporary stay came to an end.He would remain at the club for a total of three years before returning to former club Sunderland in January 2022.During his time in Scotland, Defoe scored 32 goals in 74 appearances for Rangers.The forward had also served as an assistant to Gerrard during the final five months of his tenure up to November 2021.Defoe retired aged 39 two months after leaving Rangers and has since moved into coaching with Tottenham’s academy.Away from Rangers, he scored 156 goals in 480 Premier League appearances for Spurs, Sunderland, West Ham, Portsmouth and Bournemouth.Defoe scored 32 goals in 74 appearances for Rangers during three years at IbroxOnly nine players in the competition’s history have scored more than Defoe.Meanwhile, he also won 57 caps for England, scoring 20 times across those matches.