■By STEPHEN BULL

ULSTER completed an unbeaten pre-season campaign as hat-trick hero Aitzol Arenzana-King inspired a seven-try victory over Ospreys.
Richie Murphy’s side produced some impressive attacking rugby during a dominant opening half, while Chay Mullins added two tries as the province followed up their 28-26 victory at Edinburgh.
Ulster made a flying start after James McNabney’s powerful carry created front-foot ball, allowing Michael Lowry to release Arenzana-King for the opening try after three minutes, Jack Murphy converting.
Conor McKee, drafted in a...