Jos Buttler keen to contribute as England take on Sri Lanka at T20 World Cup

Buttler has only scored 53 runs in four innings at the global tournament as England won three of their four group matches without looking convincing.

The wicketkeeper-batter has now gone 16 T20 innings without a half-century playing for England and Durban's Super Giants in SA20.

Speaking on his For the Love of Cricket podcast, Buttler said: "I'm a bit frustrated, to be honest. I felt like I was playing really well in South Africa, in the SA20, without getting scores.

"One thing I'd always pride myself on in T20s is, if you get in, to be able to go on and make a good contribution. I found myself getting out in the teens and twenties quite a bit, getting starts and then finding ways to get out.

"I think (I have been) maybe almost trying a bit too hard, as opposed to just being a bit relaxed at the crease and letting it happen.

"The first two games, I got in, 20-odds, and not managing to go on and make those telling contributions is frustrating. And then a couple of low scores against Scotland and Italy… T20, you want to be positive and get on with it, but (I) made a couple of mistakes and got out.

"I love batting and I love playing cricket and I love scoring runs. As much as you're frustrated with your form and you want to obviously contribute to the team, part of cricket is I love batting, and so not doing as much batting as you would like is frustrating.

"It's just trying to remember the things that you do well at your best and trying to take each game as it comes."

Buttler will be looking to get into form when England start their Super Eight campaign at the T20 World Cup against co-hosts Sri Lanka in Pallekele on Sunday.