Borna Barisic came through Croatia's clash with France unscathed. The left back had missed two games against Switzerland and Sweden but understands he was only rested as a precaution.
He then played 90 minutes against France on Wednesday night and will be available against Celtic on Saturday. Barisic limped off during Rangers' last game after taking a knock to his shin in the 2-0 win over Ross County just before the international break.
And fears grew over his fitness levels after he missed Croatia's first two games but Gerrard will have no worries about him ahead of the big match.
Barisic played the full game against France as his side were beaten 2-1 in a rerun of the 2018 World Cup Final in Russia.Antoine Griezmann had opened the scoring.
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