Shane Warne has claimed that a patient approach could result in England having a "wonderful" leg-spinner in Adil Rashid.

After being on the fringes of the Test squad throughout the year, Rashid made his debut at the start of the series with Pakistan and has taken seven wickets in his first two matches.

Warne worked with the 27-year-old in training on Friday and he believes that the all-rounder can become a crucial player for England.

"Rashid's got all the tools - he's a wonderful bowler and he's got a beautiful leg-break," the Australian legend, who took 708 Test wickets, told reporters.

"If you're patient with Rashid, I think you'll get the best out of him and see a wonderful leg-spin bowler."

England are looking to draw the series with a win in the third Test, which begins on Sunday.