John Dowie (youth career Rangers, senior career Celtic)[21] Gordon Marshall (youth career Rangers, senior career Celtic)[22] Craig Beattie (youth career with both Rangers and Celtic, senior career Celtic)[23][24] Sean Fitzharris (youth career with both Rangers and Celtic, senior career Celtic)[25][26] Greig Spence (youth career Rangers, senior career Celtic)[27][28] Joe Thomson (youth career with both Rangers and Celtic, senior career Celtic)[29][30] Dylan McGeouch (youth career with both Celtic and Rangers, senior career Celtic)[31][32] Gregg Wylde (youth career with both Celtic and Rangers, senior career Rangers)[33] Barry Robson (youth career Rangers, senior career Celtic)[34] Michael O'Halloran (youth career Celtic, senior career Rangers)[35][36] Liam Burt (youth and senior career with both Celtic and Rangers)[37][38] Lewis Morgan (youth career Rangers, senior career Celtic)[39] Greg Taylor (youth career Rangers, senior career Celtic)[40]