Kevin Campbell has hailed “unbelievable” Rangers striker Jermain Defoe for transforming his lifestyle to extend his playing career.

Speaking exclusively to Football Insider correspondent Dylan Childs, the former Arsenal and Everton forward is impressed by what is shaping up to be a “fantastic end” to the 38-year-old’s career.

Defoe is facing strong competition to get in the Rangers side following the captures in the summer of Kemar Roofe and Cedric Itten.

With Alfredo Morelos still the main man at Ibrox, the veteran former England international is having to be patient for his opportunities.

Campbell insists enormous credit must go to a goalscoring legend who recently scored his 300th club goal.

He told Football Insider“What an unbelievable career. Jermain Defoe has made real adjustments in his life as well.

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“I think he is vegan now and that is to keep the longevity going. He has always been a goalscorer, right from his days at West Ham.

“To be up there with Steven Gerrard and score your 300th club goal is testament to his professionalism.

“That professionalism, the want to keep going and score goals in huge. If he helps them to break Celtic’s dominance, what a fantastic end to his career.”

Defoe has scored two goals in his four Rangers appearances this season, leading the line in the 8-0 demolition of Hamilton before the international break.

Since joining Rangers in January 2019, he has played 56 times, scoring 27 goals and supplying 10 assists.

In other news, Rangers are “very keen” to seal blockbuster deal by 1 January as talks lined up.