Ibrox side Glasgow Rangers could only manage to draw 1-1 with Ross County at the weekend.
Kiernan has faced fierce criticism from the Ibrox crowd at times this season, with his performances falling below the standard expected.
The defender was not even in Rangers’ 18 man match day squad against Ross County, with Warburton favouring other options.
And Warburton admits that he took Kiernan out of his side side to protect the 26-year-old.
“We have to use the squad,” Warburton said, when questioned over why he dropped Kiernan.
“It’s intense for the boys playing in front of 50,000 with the expectation.
“Sometimes you have to take players out of the firing line a little bit for a couple of games and then look to get them back in fit and well.”
Even without Kiernan in the team, Rangers were still unable to get past Ross County.
The Ibrox side fell 1-0 behind in the fixture, and although they did do enough to come back and claim a point, they were still booed off at full-time.
Rangers’ poor sequence of results has led to the pressure building on Warburton.
The Light Blues are currently in third place in the Scottish Premiership table, with their next match coming against Greenock Morton in the cup.
Have something to tell us about this article?