Rob Yates fired his maiden first-class century as Warwickshire took a commanding position on day one of their Specsavers County Championship match against second placed Somerset at Edgbaston.

Closing on 303 for four, the Bears were led by the 19-year-old academy product, who looked assured as he reached 139* from 286 balls (22 fours), passing his previous first-class best of 91, which came at the beginning of July at Hampshire.

The Solihull-born left-hander is 32 days shy of his 20th birthday and came the youngest Warwickshire batsman to score a ton since Sam Hain, who at the age of 18 years and 336 days, reached the total in his fifth match against Northants in 2014.

Yates will look to help the Bears pick-up more batting points in the morning, a position that might have seemed unlikely when Dom Sibley departed in the second over.

With plenty of eyes watching the 23-year-old ahead of the third Ashes Test at Emirates Headingley, Sibley found Roelof van der Merwe at gully, leaving the hosts on 0/1 after just 10 balls.

But with a short boundary in front of the Eric Hollies Stand, Warwickshire frustrated Somerset with an impressive 153 partnership from 232 balls between Yates and opener Will Rhodes.

Rhodes, who would eventually depart for 82 from 117 balls after being caught by wicketkeeper Steve Davies off the bowling of Craig Overton, struck 13 fours and one six in addition to Yates’ 10 fours.

That gave the Bears a platform and any Somerset hope of quick wickets were subsequently dashed by Sam Hain.

The England Lions batsman scored just 25 from 104 balls (three fours) before edging to Davies offvan der Merwe, but he had continued to frustrate a Somerset side who used six bowlers.

The partnership between Hain and Yates was 89, leaving the hosts on 242/3 and Adam Hose next in.

With the new ball available after 80 overs, the visitors persevered for an extra 5.2 overs before changing during Brooks’ 14th over.

The move brought success with Overton trapping Hose lbw for 17 from 36 balls (three fours), 20 balls later, earning him his second wicket.

But wicket-keeper Tim Ambrose (16*) followed the trend, striking two fours in a 28-run partnership with Yates.

The pair will be looking to add a further 47 runs in the first 14 overs tomorrow to earn a fourth batting point, before going in search of surpassing their highest score when batting first this season - 391/9 dec against Nottinghamshire at Edgbaston.

Copy supplied by Mat Collis, ECB Reporters' Network

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Western Storm continued their perfect start to the Kia Super League with a thrilling five-wicket win over winless Lancashire Thunder at Chester Boughton Hall. 

Smriti Mandhana’s superb 72 from just 43 balls was the mainstay of the Storm’s successful chase of 160 as the 2017 champions made it six wins from six.

Deepti Sharma struck the winning boundary off the penultimate ball. 

Harmanpreet Kaur earlier made a half-century for Lancashire, sharing an 85-run stand with Tahlia McGrath, but it ultimately was not enough to secure victory.

Storm captain Heather Knight said: "We just keep finding a way to win.

"I don’t think we have put together a complete performance yet in all three facets.

"I don’t think we played our best cricket today but we just got into the habit of winning which is quite nice and different people contributing."

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JACK Leach impressed for England but the hosts could not quite force victory against Australia at Lord's.

Leach took 3-37 from 16.3 overs in the tourists' second innings but Australia managed to reach 154-6 by the close of the final day to maintain their 1-0 lead in the series.

Leach, who took 1-19 in the first innings of a good individual match, dismissed Cameron Bancroft, Marnus Labuschagne and Matthew Wade in Sunday's play - the latter caught by Leach's good friend and former Somerset teammate Jos Buttler at short leg.

Leach told the BBC's Test Match Special: "It was an amazing atmosphere but we are disappointed we couldn't get over the line.

"I don't think I was at my best and there are things to work on before Headingley [the third Test, which begins on Thursday].

"Hopefully we can go up there and level the series."