By Sam Jackson

Exeter Chiefs attack coach Dave Walder is confident they can maintain their early-season form and challenge for silverware after director of rugby Rob Baxter rung the changes in pre-season.
The Chiefs are third after the opening block of fixtures, with three bonus point home victories over Gloucester, Harlequins and Newcastle, a draw at Northampton on the opening weekend, and a narrow defeat at Bristol, which garnered another bonus point.
It is part of a massive turnaround from last season where Exeter won just four matches and ended second-from-bottom, their worst top-flight...