Middlesex are in a strong position against Somerset at Lord's, as they search for a win which would ignite their title challenge.
Angus Fraser's Middlesex are without Steven Finn, who is hoping to take James Anderson's place in the England side playing the third Test against the West Indies, but captain Chris Rogers still has a wealth of bowling talent to call upon.
Tim Murtagh outbowled Finn in taking five first-innings wickets against Sussex, while Toby Roland-Jones, Gareth Berg and spinners Ollie Rayner and Dawid Malan all chipped in against the Sharks. Former West Indies seamer Corey Collymore is also set to come into the team.
Somerset currently lie in third position in the championship, after two consecutive seasons where they have been agonisingly close to taking the title.
In Nick Compton they possess the country's in form batsman, who was cruelly denied the chance to reach 1,000 first class runs by May when poor weather delayed the feat in Somerset's recent draw with Worcestershire.
Injury has severely weakened their bowling resources though, with teenage twins Craig and Jamie Overton playing in the match at New Road.