91Èȱ¬

Sam Robson scored a career-best double century as Middlesex piled on the runs against Warwickshire on day two.

The 23-year-old, who began the day on 136, took his score to 215 not out, as the visitors amassed 428-5 before rain brought a premature end to play.

Robson's 307-ball innings has so far contained 23 boundaries.

Boyd Rankin (2-87) got rid of Neil Dexter (46), while Jeetan Patel (3-99) accounted for John Simpson for 19 as Middlesex closed on 428-5.

Robson, who passed his previous best score of 204 by slog-sweeping Patel for his first six over long on, is an Australian-born batsman but qualifies to play for England next year.

England's Jonathan Trott had earlier put down a sharp caught and bowled chance going to his left with the opener on 141.

Rain swept in from the west at 14:30 BST and umpires Rob Bailey and Steve Gale abandoned play for the day two-and-a-half hours later.

91Èȱ¬ London 94.9's Kevin Hand:

"It was a frustrating day for all at Edgbaston as the weather was the overall winner.

"Sam Robson did have time to hit his first championship double ton to continue his prolific start to the summer.

"The Middlesex opener dominated the bowling again but it was a more controlled approach by Warwickshire than on the first day.

"Neil Dexter's attempt to bring up his 50 brought his downfall and the visitors may reflect on one too many soft dismissals.

"But they remain in a very strong position and they will know early wickets could heap pressure on the hosts' eventual reply."

Match scorecard