There's no stopping the 38-year-old Irish scrum-half, who has just marked his 19th professional season with a Player of the Year award

There were warm tributes for Chris Cusiter this week after the Sale scrum-half called time on a career that included 70 Scotland caps and one for the Lions, off the bench in that curious 2005 draw with Argentina on home soil.

At nearly 34, Cusiter has given professional rugby a very good lash but in truth he has had to play second fiddle in his final season to a man who will celebrate his 40th birthday next year.

Peter Stringer lost out to Cusiter in Lions squad selection all those years ago but he has never stopped driving himself on, determined to be the best he can be for as long as can be.

Jonny Wilkinson’s obsession with self-improvement was legendary as a player but even he had the odd drink during his career; Stringer has never sipped alcohol or dragged on a cigarette, he exercises twice daily even when on holiday, and he thinks nothing of taking his own (mega-healthy) lunchbox to the airport when faced with an away match. Salmon and rocket anyone?

His single-mindedness means that his fitness levels are never in question – scrum-half is an especially unforgiving position in that respect – and more than three years after being let go by Munster he has just been voted the Supporters’ Player of the Year at Sale. “He has brought our back-line to life this season,” said director of rugby Steve Diamond when extending Stringer’s contract until next summer.

Peter Stringer

Northern rock: Spinning a pass away for Sale against Saracens in February (Action Images)

If his longevity is extraordinary, Stringer’s size is no less remarkable. At 5ft 7in and 11st 5lb (72kg) pretty much all of his career, he has, paradoxically, stood out from the crowd for most of a rugby journey that began with his home-city club Cork Constitution when he was six.

His small stature has led to him being treated differently in countless ways, subtle or otherwise. At UCC, his university rugby coach asked his parents for permission to pick him. After he was punched by Alessandro Troncon in a Six Nations match, the hotel cleaning ladies in Rome hugged him. And if someone needed to be bumped into economy class for a flight, no prizes for guessing who fingers pointed to…

Stringer recently published a fascinating autobiography and the tale of how he was mistaken for a mascot by parents, when leading out the Pres U13 team that he captained, opens one of the most brilliant and heart-rending chapters you could ever read.

Concerned by expressions of disapproval that their son was allowed to mix it with far bigger boys in a physical sport, Mr and Mrs Stringer decided to enlist Peter on a growth hormone programme. Peter’s distraught reaction convinced them to abandon the idea and he has gone on to genuine greatness – 230-plus Munster appearances and 98 Ireland caps do not happen by accident.

Peter Stringer

Young star: In action for Pres during the 1993 Munster Schools Junior Cup final (Des Barry/Cork Examiner)

His size also makes him well placed to discuss the merits of a recent call, by a group of doctors and academics, to ban tackling in schools on the basis that some children will get hurt.

“I wouldn’t change a thing from the rugby I’ve played. It would do a lot more damage if people only started tackling at 18. It would kill the game, ruin the professional game,” he says unequivocally.

“Being coached properly is the main thing; you need the right technique. You start by tackling on your knees and everyone is at the same level, with relatively similar sizes and heights. If you learn from a young age, it’s easier to pick it up and it’s engrained in you. You have a base level doing it regularly under correct supervision.”

Mike Phillips

New Shark: Mike Phillips, signed from Racing, will compete for the nine shirt next season (Action Images)

Stringer says that even today, when making a tackle for Sale, he sometimes hears the voice of one of his former mini coaches yelling, “Take him by the legggggs!”.

The Munsterman dismisses the suggestion that the legal height of a tackle should be lowered. In three and a half decades of rugby, he has suffered three concussions, none of them at school. “From my point of view, for a tall guy to tackle me below the sternum is very difficult. You see higher shots on smaller guys but I’ve no problem with that.”

Peter Stringer tackling Matt Banahan

The bigger they are… Tackling Bath’s Matt Banahan at the AJ Bell Stadium last month (Getty Images)

He has more sympathy for the idea of weight bandings for age-grade rugby, as occurs in New Zealand where youngsters of certain ethnic backgrounds tend to develop earlier and large playing numbers ensure no one misses out.

“In some ways weight-related rugby would have been an advantage for me,” he muses. “If I’d played against guys of the same size when younger I’d have had more confidence going into contact and the ability to develop offloading skills. Whereas I found when taking contact that I was fighting my way to the ground, rather than having the power to go through a tackle.

“But if you’re a small player up against bigger ones from day one, you develop footwork to avoid bigger guys, and speed to get round them. Being small gave me a tenacity to survive that has stood me in good stead right through my career. If I’d been thrust into weight-related rugby, then a number of years later would I have been able to adapt to adult rugby?

Stringer at RWC 2003

Sandwich filling: Stringer has Mal O’Kelly and Alan Quinlan beside him for the anthem at RWC 2003 (Inpho)

“It’s an interesting one, there are plusses on both sides. Everyone is born with a certain amount of talent, with footwork and speed for example. If Jason Robinson, say, had played with same-size guys, would he have tried to run over them instead of step?

“By the time you get to the senior level you will have missed out on years of sidestepping and evasive skills, and so might not be able to implement them in a game against bigger guys.  You’ve got to face the big guys at some stage and the earlier you do so, the better it is for your skill level.”

Stringer points out too the perils of asking, say, a big 15-year-old to play with 17-year-olds of a similar size but at a completely different level of emotional and social maturity.

“You’d be on dangerous ground there. At school especially rugby is about the enjoyment factor and if you try to move people out of their natural age groups that could be taken away and you’d end up with a lot fewer people playing the game.”

So speaks a voice of experience and reason, a player who hasn’t allowed either size or age to hinder his ambition. This weekend Sale need a victory at Newcastle to try to secure Champions Cup qualification – and, as he completes his 19th season as a pro player, Peter Stringer will be at the heart of the challenge as always.

To buy Peter Stringer’s book Pulling the Strings, published by Penguin Ireland, click here.

Peter Stringer

Special delivery: One of the best passers of a ball in the pro era – and he’s not finished yet (Inpho)