The 37-year-old, signed as an overseas replacement for South Africa Test skipper Hashim Amla, arrived today and will go straight into a Surrey squad that already includes international superstars Kevin Pietersen, Robin Peterson and Azhar Mahmood as well as in-form batsman Jason Roy.
Dilshan, who has played under Surrey head coach Graham Ford for Sri Lanka, told the club’s official website: “It is a great opportunity for me, especially at this ground. I am really enjoying it here.
“It is one of the most famous grounds in the world. I am really happy and excited to start tomorrow. It is a good challenge for me playing county cricket.
“I will come tomorrow and just play my natural game. I try to give 100 per cent to the team, not just batting but fielding and bowling as well.”
Chris Tremlett and Tom Jewell could make their first sprint-format appearances of the season, but Jade Dernbach is ruled out with a hamstring strain he sustained in LV= County Championship action this week.
Leaders Hampshire sit four points above third-placed Surrey, albeit having played two games more, and boast a number of dangermen in their side.
James Vince, Michael Carberry, Jimmy Adams and hard-hitting Australia all-rounder Glenn Maxwell are all capable of changing a game in a short space of time.
Former England batsman Owais Shah was left out of the starting XI for the last two matches and may return, but Liam Dawson is still sidelined.
* Surrey’s semi-final victory last season ended a run of four consecutive Hampshire wins in Twenty20 meetings between these teams.
* Danny Briggs has taken the most wickets stumped in NatWest T20 Blast 2014 – three of his 13 wickets have come this way.