Mellor the hotshot as Pool's rising stars outgun Boro
The 21-year-old striker made the most of a rare first-team appearance to notch goals in the 83rd and 89th minutes.
Coach Rafael Benitez gave some of his promising youngsters a run-out against the holders and they did him proud. Mellor, Darren Potter, Zak Whitbread and Stephen Warnock were all included from the start, while John Welsh and Ritchie Partridge came off the bench.