Jones ‑- who brings with him a wealth of expertise honed by travelling all over the world - monitored the Ton squad during their pre-season programme last term.
He worked with the Scottish Football Association at the same time as Ton assistant boss McNally, who used that contact to bring Jones to the club last year.
The Cappielow side went on to make a blistering start to the campaign and McNally hopes to enjoy similar results this time around.
McNally, pictured, told the Tele: "We had a meeting with Jonesy two weeks ago so he'll come in and test the players on the first day of pre-season. He will be on board again this year.
"He has mapped out some of the stuff we need to do in order to get them into tip-top condition. We will tap into his knowledge as well as the stuff we had been doing ourselves.
"The way we started last year, sports science comes into it as well as helping to avoid injuries - although there is not much you can do about broken bones like we had last season."
Sports science is a growing industry within football - with many top-flight clubs now bringing experts on to their payroll to help get the best from their players.
And while Ton are not able to make a permanent appointment, McNally is delighted they will be able to utilise Jones' extensive experience.
He said: "We can tap into Jonesy and his knowledge and can give him a phone at any time to run something by him.
"If there is anything that he has seen on his travels around the world then he brings that back to us and the boys enjoy that side of it as well.
"Sports science is a big part of football nowadays and all the top clubs use it to help them.
"Some of the top clubs even have two or three sports scientists on staff, although that obviously isn't feasible for us or most other teams."