Bristol (United Kingdom) (AFP) – Sri Lanka batting coach Jon Lewis believes it is just a matter of time before Kusal Mendis and Angelo Mathews hit form at the World Cup. Experienced all-rounder Mathews has yet to open his account after ducks against both New Zealand and Afghanistan while Mendis has scarcely been more productive with a nought in the defeat by the Black Caps followed by just two runs in a tense win over the Afghans. Sri Lanka, whose last match against Pakistan was abandoned without a ball bowled,…