Northampton Saints will look to keep their hold on the top spot in this weekend's Aviva Premiership action.
The Tigers travel to the Salford City Stadium to take on a Sharks team that are yet to win in the Aviva Premiership this season.
The Aviva Premiership fixtures for 2012/13 have been announced.
The Worcester Warriors' team coach was destroyed in a blaze as players and staff travelled to their afternoon match against Swansea.
The fire caused long delays on the M5 as fire crews tackled the flames, while the game was pushed back by 90 minutes.
Full story by Wesley Smith.
Thick plumes of black smoke billow into the sky as flames rage at the rear of the Worcester Warriors' official team coach in a video captured by a passing car.
The severe blaze was caught on camera by the passenger of the car, before emergency services arrived.
The coach caught fire as the team travelled along the M5 to Swansea for a match.
The video was uploaded to YouTube by Natasha Phipps.
Flames took hold of the Worcester Warriors' team coach as players travelled along the M5 this morning.
All staff and players are said to be safe and well. It's not yet known how the fire started.
The coach was reduced to little more than a metal shell after firefighters managed to put out the blaze.
The match will now go ahead later than scheduled, at 4.30pm.
We'll see you all at the Liberty Stadium then! Ospreys v Warriors goes ahead with 4.30pm kick-off.
Two lanes have now re-opened on the M5 southbound in Gloucestershire.
All lanes were closed between J14 B4509 (Thornbury / Falfield) and J15 M4 (Almondsbury Interchange) after Worcester Warriors' team coach caught fire.
Congestion is back to J13 A419 (Stroud).
The Highways Agency website shows Southbound traffic on M5 is bumper-to-bumper as far north as 11A for Gloucester right down to coach fire site near Bristol.
They expect the road to start clearing from 12.30pm, but there are likely to be considerable delays for holidaymakers getting away for the Bank Holiday weekend. The A38 is also reported to be very busy in the area.
No Worcester Warriors players or staff are reported to be injured after their coach caught fire. Their match is rescheduled at Ospreys for 4.30pm.
Latest - The Warriors team bus caught fire on the M5 this morning. Discussions are taking place to determine whether the match will go ahead
Latest - All players and staff are safe and well. We will let fans know as soon as a decision regarding the match has been made.
Worcester Warriors have appointed Charles Cameron as their new CEO.
He will take up his new position on Monday 13 May.
– Anthony Glossop, Worcester's Chairman of the Board
We are very pleased to have recruited Charles as CEO after a comprehensive and wide-ranging search.
A club such as Worcester faces many challenges in creating a sustainable business model and a higher position in the league and we need an experienced business leader in the CEO role.
Worcester Warriors have confirmed that Dean Ryan has been appointed Director of Rugby following the departure of Head Coach Richard Hill.Ryan, who spent four successful years as Head Coach of Gloucester Rugby, will begin his role as Director of Rugby following the final game of the season.
The 46-year-old was part of the Scotland coaching team during this season's Six Nations, where he helped to steer the side to back-to-back victories for the first time in 12 years and, with it, their highest finish for seven years.
During his playing days as a number eight, Ryan won four England caps and enjoyed spells at Saracens, Wasps, Newcastle and Bristol.
Worcester Warriors has confirmed that Richard Hill will be leaving his post as Head Coach at Sixways Stadium with immediate effect.
Former England international Hill has been in charge at Warriors for the last three seasons and led the club to promotion to the Aviva Premiership in 2011.
However, following the club’s recent run of form, Bill Bolsover CBE – the club’s chairman of its Rugby Committee, has announced that Hill will leave the club.