Rangers the big winners without kicking a ball as Celtic draw a blank
Shunsuke Nakamura and Scott McDonald hit the woodwork in the first half before United midfielder Craig Conway missed a sitter from six yards out when he headed over with only Artur Boruc to beat.
The Hoops dominated the second half but could not find a way past a resolute Tannadice defence who now look forward to Sunday’s CIS Insurance Cup final against Rangers at Hampden.