The pair will join the Scottish Championship side at the end of the season.
Andy Halliday has been full of praise for Josh Windass and Matt Crooks ahead of their moves to Rangers in the summer, and has admitted that he has already watched the Accrington Stanley pair a few times, The Scottish Sun reports.
Windass and Crooks are set to move to Ibrox at the end of the season (via The Scottish Sun), and the current Gers midfielder has explained that having already seen them in action - having travelled down to watch Kal Naismith during his time at the Wham Stadium - he has been impressed by what he has seen from the pair, and is in no doubt that they will add to the quality in Mark Warburton's squad.
"Kal, who was previously at Rangers, is one of my best pals," he told The Scottish Sun.
"I made the trip to Accrington to watch them a few times when Kal was there and Crooks and Windass, were the two who stood out most in that team.
"They're going to add a lot of quality to Rangers. Competition is healthy and like the rest of us they are going to have to fight for their place, but they are two good players and we are lucky to have them.
"Competition never worries me. I just need to do the best I can. We are all striving for the one thing and that is the best thing for Rangers."
If the 24-year-old was impressed when he saw the pair last season, he will have surely been even more excited about what they will bring to the team based on their performances this season.
Windass and Crooks, both 22, have been instrumental in taking John Coleman's men from their 17th place finish in League Two last season to second in the table with just one game to go this campaign.
While Crooks has been important to their progress - with six goals and two assists in the league this term - it is Windass that has taken many of the headlines with his 15 goals from midfield proving crucial to Accrington moving to within one fixture of automatic promotion.
And if the pair are able to maintain that form after signing for the Light Blues, then along with the likes of Halliday and Jason Holt, the club should have no problem adjusting to the standard of the midfield battles in the Scottish Premiership.