Lumb puts Notts in total control
Nottinghamshire have built a strong position at Chester le Street after they removed Durham for 129 in their first innings.
Notts then stormed to 231-4 in their second innings to stretch their lead to 263, with Michael Lumb on 104 not out, while Alex Hales contributed 57. Samit Patel failed but Jimmy Taylor made 37 as the visitors prospered.
Michael Yardy's 110 and three second innings wickets from Queenslander Steve Magoffin have champions Lancashire in real trouble at Liverpool.
Sussex made 300 - a lead of 176 - and have their hosts tottering on 85-4 with Ashwell Prince the home side's main hope unbeaten on 31.
Middlesex's bowlers hit back after a spell of beating the bat for little reward at Lord's. Dawid Malan’s 88 enabled them to reach 256, but Steve Davies (62) and Jacques Rudolph (45) put on 85 for the opening wicket, before the home side hit back.
At the close Surrey were 161-5 and Middlesex will hope to secure a first-innings lead.
Somerset will hope that Nick Compton passes the ton he narrowly missed in their opening game as they are struggling at Edgbaston.
Darren Maddy and Keith Barker added 40s to their three-wicket hauls on day one and have the home side well placed. At the close Somerset are only 31 ahead with six wickets, with Compton on 61.
In Division Two Jonathan Clare has put in a fine all-round performance to put Derbyshire in a strong position at Cardiff.
He took 5-17 to reduce Glamorgan to 95 all out and is 40 not out in an unbroken 55-run seventh wicket stand with David Wainwright.
The 35-run first-innings lead has stretched to 187 and Glamorgan's fragile batting may struggle to manage even that number of runs.
Gloucestershire are one side who have posted a good total; this thanks to Chris Dent's 114. He and Ian Cockbain added 135 for the fifth wicket with Cockbain making 64 in the total of 314.
Despite Simon Katich's 74 Hampshire are in trouble at 182-7, with Ian Saxelby and Will Gidman both taking three wickets.
Kent also managed a decent total with Mike Powell hitting 128 for his new county in their 368 all out. Geraint Jones made 53 and Jack Brooks lacked support as he took 5-98.
With Northants, who trailed by 236 on first innings, already reduced to 50-4 this appears to be an away win, unless skipper David Sales, who is 31 not out, receive a lot of support on day three.
Lancashire are 11/1 to win this year's Twenty20 competition, with Surrey are 6/1 and Notts 10/1.
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