Marcus Trescothick scored his fourth century in eight first-class innings at Wantage Road as Somerset marginally had the better of day one in the LV= County Championship clash with Northamptonshire.
The opener, who also made it four centuries for the season, reached the milestone in the final over before tea. He went on to make 124 before falling to Andrew Hall, as his side reached 366 for eight at stumps.
He was given excellent support by Peter Trego who, after being given not out from his very first delivery as Andrew Hall claimed a low catch at first slip off David Willey, contributed heavily to a fifth-wicket partnership of 174.
There was one black mark on the day for the visitors, however, after Craig Kieswetter was forced to retire hurt with a laceration under his right eye and a suspected broken nose after being hit by a Willey bouncer.
— ppauk (@ppauk) July 12, 2014
That particular event was part of an incident-packed hour after the lunch break which saw James Hildreth trapped lbw by Willey, Kieswetter felled and Trego reprieved before it all settled down and those doing the batting began to dominate.
On a warm day that encouraged swing throughout and on a pitch that bounced enough to keep the bowlers interested, the first session was edged by the home side who made good inroads into the top order.
Chris Jones was the first to go when he loosely drove at Muhammad Azhar Ullah and lost his off stump and there was a similar outcome when Willey cleaned up Nick Compton with a delivery that left him.
Colin Ingram, on his four-day debut for the club, then pulled Olly Stone to Matt Spriegel at square-leg and when the interval arrived the score was 93 for three.
That had been advanced to 249 for four by tea as Trescothick and Trego, who made it to 50 shortly before his partner got to three figures, motored along at five an over.
The home side, who plugged away commendably all day, missed a gilt-edged chance to break the partnership when Kyle Coetzer put down Trego at second slip off Stone but they finally broke through when Trescothick, having struck 20 fours, edged Hall to slip.
And that's the fourth century in the Championship for Tresco this season. Cracking effort! Somerset 249/4
— Somerset Cricket (@SomersetCCC) July 12, 2014
The second new ball was taken immediately and it accounted for Trego, hit in front by Stone, in the very next over, with the batsman having made 77.
Craig Overton and Lewis Gregory did not hang around for too long but George Dockrell and Alfonso Thomas saw out the final half an hour without any further setbacks.
Speaking about the day's play, Somerset captain Trescothick said: "It did quite a bit more than we were expecting.
"The new ball was tricky with wickets in the morning and tonight. I was delighted (with 124) because it was really tricky this morning and I didn't feel like I was seeing it very well and then I had to work hard."
As for Kieswetter, Trescothick says that the full extent of the damage is yet to be realised.
He added: "He's still being assessed. He'll see people, we're going to pop in and see him in a bit and we'll get to know a bit more after that.
"It wasn't particularly nice and it was a nasty situation when we were out there."