Beware of the 'Derby Hangover'. Randwick, Easts and Manly all lost a week after battling brutal local derbies, while Warringah needed a bit of luck to fight from and claim a controversial 29-26 victory over Sydney Uni.

Elsewhere, Souths beat West Harbour to claim their first win of the season and Hunter came from behind to beat the Two Blues. Catch up on all the round five action below.

Northern Suburbs 20-19 Randwick

Norths gained a little revenge over Randwick for last year’s grand final loss by holding on to claim a tight 20-19 victory over the defending premiers in a scrappy game at North Sydney Oval.

Norths dominated the battle up front early and opened the scoring when No.8 Ed Timpson crashed over from close range in the 6th minute.