Dunn leads fine Surrey day
Surrey 186 for 0 (Burns 98*, Ansari 84*) lead Gloucestershire 112 (Dunn 4-37, Roy 3-9) by 74 runs
Rory Burns and Zafar Ansari shared an unbeaten opening stand of 186 as Surrey took complete control on day one of their Division Two match against Gloucestershire.
Matt Dunn took 4 for 37 while Jason Roy recorded career-best figures of 3 for 9 from just four overs as Surrey dismissed their hosts for 112 before lunch at Bristol.
Burns (98 not out) and Ansari (84 not out) then set about putting their team firmly in the driving seat, guiding them to 186 without loss at the close at Bristol, a lead of 74.
Gloucestershire won the toss and decided to bat but lost their first wicket with just the 11th ball of the innings as Dan Housego, making his first Championship appearance of the season, was bowled by Chris Tremlett without a run scored.
Skipper Michael Klinger (4) soon followed with Gary Wilson taking the catch off Dunn behind the stumps and Alex Gidman (11) was removed in the same over with Jason Roy taking the catch.
Tremlett had taken 6 for 59 against Gloucestershire earlier in the season and when he had Hamish Marshall caught behind for just one, the hosts were 17 for 4.
That became 25 for 5 when Ian Cockbain, another man making his first four-day appearance of the season, went for a duck, caught behind off Dunn.
Geraint Jones and Will Gidman (19) put on 32 for the sixth wicket before the latter was trapped lbw by Jason Roy and the part-time bowler was on a hat-trick two overs later as he removed Benny Howell (eight) and Tom Smith in successive balls.
Matt Taylor ably supported Jones before the former England wicketkeeper was caught by Hashim Amla off Dunn for 28.
Lunch was delayed with the home side nine down and Taylor (24) was the final wicket to fall, caught behind off Jade Dernbach.
The afternoon session would then belong to the visitors with Burns reaching 2000 first-class runs and bringing up his half-century off 90 balls.
Surrey trailed by just 14 at the tea break and were soon in credit without losing a wicket with Ansari registering his 50 in 125 balls.
The duo continued their progress and Burns ended the day just two runs short of a century off 187 balls.
Despite not taking a scalp on Monday Will Gidman, who leads the Division Two charts with 31 wickets, was the pick of the bowlers, surrendering just 16 runs in 13 overs.