How does Clancy call knock on there from Gilroy?

Glasgow lose it forward so it will be a scrum to Ulster

Gilroy is almost through but spills it and Glasgow run from deep

Ulster attack on the Glasgow 10

Matawalu tries to run it from deep but is tackled into touch by Cave just inside the Glasgow half

Glasgow attack 35 out

Unbelievable by Ulster

Pienaar kicks out on the full this time, line out back for Glasgow 30 out

Nakarawa with a loose offload and Russell knocks on, scrum Ulster

Free kick Glasgow