|LV County Championship Division One, Hove|
|Close of play, day two: Somerset 213 & 114-1 v Sussex 177|
|Somerset 4pts, Sussex 3pts|
Peter Trego and Steve Kirby took six wickets in six overs as Somerset built a sizeable lead over Sussex at Hove.
Somerset resumed on 154-6, but were soon all out for 213 as Rana Naved-ul-Hasan completed a five-wicket haul.
Charl Willoughby (2-24) then made inroads before Kirby (3-54) and Trego (4-24) ripped out the middle order as Sussex were skittled for 177.
Marcus Trescothick hit an unbeaten 64 as Somerset closed on 114-1 second time around, a lead of 150.
Trescothick's second half-century of the match put Somerset in control as Sussex's only success in the final session came when Monty Panesar had Arul Suppiah stumped for 38 to end an opening stand of 102.
But their lead might have been even bigger had it not been for the efforts of James Anyon, who hit his maiden first-class 50 after Sussex lost six wickets for 24 runs in six overs after lunch.
Sussex had already made a poor start, with Chris Nash edging the fourth ball from Willoughby to Trescothick at second slip before Luke Wells went the same way in his third over.
Ed Joyce and Murray Goodwin took the hosts to 71-2 but they fell apart as Joyce was caught behind off the second ball after lunch from Kirby, who then had Goodwin caught at second slip by Trescothick from the final ball of the over.
Trego then struck twice in the following over as Matt Prior, who had been hit on the elbow by the first ball he received from Kirby and did not keep wicket as a precaution later in the day, chipped his third ball tamely to Alex Barrow at mid-wicket and Andy Hodd nicked his second ball to Suppiah at first slip.
Mike Yardy was next to go, giving Trescothick his fourth catch, before Kirby picked up Rana lbw to leave Sussex 95-8.
Panesar and Anyon dug in and added 50 for the ninth wicket before the England left-arm spinner was run out after being slow to respond to his partner's call for a single.
But Anyon continued to play his shots and went to 50 off 78 balls before slicing Trego to cover.
CLOSE OF PLAY SUMMARY
BBC Sussex's Rob Stevens:
"Steve Kirby and Peter Trego were absolutely devastating straight after the lunch break, tearing through the Sussex middle order and taking control of the game within the space of two overs.
"That batting collapse meant no bonus points for Sussex. They've only picked up nine batting points from their six championship matches so far this season. There is definitely space from improvement from what looks on paper a strong batting side.
"James Anyon's maiden first-class 50 gave Sussex some respectability but Somerset are on top.
"Their batters warded off the Sussex seam attack in their second innings to finish the day in a commanding position."