Strachan has called up Cooper for Scotland’s upcoming international friendly matches against the Czech Republic and Denmark.
The former Leeds midfielder has explained his decision to draft in the 24-year-old, who can play as a centre-back or as a left-back.
“Liam went from Chesterfield for about £800,000 a couple of years ago and is still a young centre-half,” Strachan told The Scottish Sun.
“He’s still learning the game and has a good presence. He has a good left foot and can pass the ball. Steve Evans has been delighted with him.”
Cooper has been on the books of Leeds since 2014 and has established himself as an important player for the West Yorkshire outfit.
The former Hull City man has a pass accuracy of 73% and a shot accuracy of 20%, and has won 100 headers, nine dribbles and 31 tackles.
Leeds are 15th in the Championship table at the moment with 44 points from 35 matches.
The West Yorkshire outfit are nine points above the relegation zone and 12 points behind Sheffield Wednesday, who are currently sixth in the standings and occupy the final playoff spot.