Northampton hooker Dylan Hartley will miss their clash with Ulster on Saturday after receiving a two-week ban for striking Rory Best. 

Hartley pleaded guilty to the offence, which occurred during last Friday night's Heineken Cup defeat to Ulster at Franklin’s Gardens. 

The England international will miss Saturday's return fixture in Belfast, plus Northampton's Aviva Premiership appointment at home to Harlequins on 22 December.