Rangers loanee Kieran Dowell scored his first goal for Birmingham City as he capped a stunning team move against Cambridge.
The midfielder, 28, had assisted Birmingham's second in the League One rout after 39 minutes before netting himself seconds later.
Jay Stansfield fired Birmingham ahead from the penalty spot with 23 minutes on the clock.
Dowell then played a role in a Liam Bennett own goal as an improvised lopping through ball found a team-mate down the flank to cross where Bennett put into his own net.
Then, Dowell would apply the finishing touch to a fantastic Birmingham City move to make it 3-0 before the break.
The midfielder kickstarted the move with a shot pass into a team-mate before bursting to the edge of the box.
Neat interplay led to a rolled pass across the pitch which was allowed to roll for Dowell to simply roll into the far corner.
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Ben Davies - also on loan from Rangers - started in the league match with Scott Wright coming off the bench for Birmingham.
Ex-Celtic midfielder Tomoki Iwata started for the League One club with former Hearts defender Alex Cochrane at left-back and Scotland pair Lyndon Dykes and Grant Hanely used as subs.
Quickly, Birmingham supporters have urged club chiefs to sign Dowell on a permanent basis with reports branding the Ibrox ace "a cut above League One level".
A Birmingham Mail player ratings report scored Dowell as 9/10 and the pick of the performers in the 4-0 win, stating: "Dowell is a delight. He has joined the clutch of Blues players who look a cut above League One level and waltzes around the pitch weaving his magic without a care for the opposition’s dignity.
"The only criticism is that he should have scored more than one."
