Marsh's poor injury luck continued when he was diagnosed with a stress fracture in his lower back while with Australia's Commonwealth Bank Series squad.

The 20-year-old Western Australian is eyeing a return from the injury in Australia's one-day international series in England in June and July but said he will cautiously manage his workload upon his return.

Marsh, who will be unable to run for two months and won't be able to bowl for 14 to 16 weeks, said his heavy all-round workload had been a factor in his injury and meant he needed to look at the amount he bowled.

"I want to predominantly be a batsman who bowls a bit. I've had a few injuries from bowling that has cost me a lot of cricket so it's something I’m going to have to work on," he said.

"It's obviously going to be something that I'm going to have to look at."

"I've still got a lot of time on my hands to work on my bowling. Realistically my batting hasn’t been up to scratch in four-day cricket so that’s something that I want to work on and be a batsman that bowls."

Marsh, who has played one ODI and three T20s for Australia, said he will spend part of his recovery time working on ways to improve his bowling technique to prevent further injury.

"[Former WA coach and WACA board member] Daryl Foster will have a look at my action over the coming months and hopefully Dennis Lillee can help me out with that," he said.

"Obviously he's taken a few wickets in his time and hopefully he can help me out if he sees anything I can work on."

The younger Marsh brother's injury ruled him out of the end of WA's season but elder sibling Shaun captained the Warriors for the first time in their four-wicket loss to New South Wales in the Ryobi One-Day Cup on Wednesday.

Although Shaun Marsh was disappointed with the result, which saw WA finish bottom with just one win from eight games for the season, he said the captaincy was a huge thrill.

"I really enjoyed it, it was something that I've always dreamed about to captain WA," he said.

"Defending 150, you've got to do a lot of things right ... we gave it a good effort in the end but it just wasn't enough."

Nathan Coulter-Nile earned the man-of-the-match award after top-scoring for the Warriors with 53 and taking 3-44.

WA's attention now turns fully on the Bupa Sheffield Shield, which they lead with two games to go.