Sporting digest: Rugby league

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St Helens have agreed to extend the loan spell of Dean Busby, their 25-year-old former England forward, to Hull Sharks for another month.

Warrington Wolves will be without Jon Roper, their 22-year-old Great Britain international, for up to 10 weeks after the stand-off broke his leg and dislocated his ankle in the 18-18 draw against Sheffield Eagles 10 days ago.

Sheffield Eagles' meeting with Castleford Tigers has been moved forward a day to a 7.30pm kick-off on Friday, 3 July to avoid clashing with the World Cup quarter-finals.