A series of storylines await the Cricket North sides as the Greater Northern Cup enters the final rounds of the regular fixture.
The Shamrocks are yet to lose at Ingamells Oval, but the Sheffield Mountaineers look like strong opposition given they sit just off the finals pack in the Greater Northern Cup standings.
"We pride ourselves as a club on making Westbury one of the toughest grounds for the opposition to come and play at," Westbury captain Daniel Murfet said.

"We're still wary there's a lot of things we want to improve on, we're still yet to play our best cricket with bat and ball and in the field so we're still striving towards getting closer to that every weekend if not this weekend," Murfet said.
Chathura Athukorala is out through injury and Deepak Singh with personal reasons while James Tyson and Nasrullah Khan come in.
Last week, Launceston left a few runs on centre wicket and suffered the consequences but they are eager to bounce back against Wynyard.
Despite being moored to the foot of the table, the Tigers have shown improved performances in the last two rounds including a win over South Launceston.
"We probably left 100 runs out on the park so looking to bounce back this weekend, Wynyard have found some form it was only a matter of time before they started," Launceston coach Andy Gower said.
"We're just disappointed that someone in the top five just didn't go on and get a big score, that's what we pride ourselves on."

Tom Gray is out with injury, Charlie Eastoe will miss and Jackson Miller is under a cloud as Dihan Cloete and Daniel Smith shape as inclusions.
After three losses on the trot, Riverside are aiming to break their run of bad form when they travel to Latrobe this weekend.
After a high-flying start to the season, Riverside are short of form after a series of slow starts with bat and ball.
"We're essentially not taking wickets and going for too many runs in the first half, in the first 10 to 15 overs in the bowling innings so we're identifying the start process of our [innings] really have to change," Riverside coach Lyndon Stubbs said.
"It's all about us this weekend, the opposition is pretty irrelevant to be honest we just need to get back to playing our brand of cricket."
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Tom Garwood is unavailable while Tom Lewis is out with Kaidyn Apted and Robert Eltringham set to come in.
South Launceston want to return to the winners' circle after a shock loss to Wynyard last time they ventured out to centre wicket.
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The Knights will be refreshed off the bye as they face Devonport with Matthew Fulton out of the side with chronic knee issues.
"We're more focused on the long game and our entire season which wraps up in March and trying to go as deep into that as we can," Knights captain Sean Harris said.
"It's more about performances now and getting some experience in them in first grade at this point of the year."
Mowbray will have to weather a Hurricane if they want to extend their winning run beyond this weekend.
The Eagles face Burnie at home and are acutely aware of the need to perform at this stage of the competition.
"The big key for us is consistency, over the last month we'd sort of win one week and lose the next so we're hoping for some consistency which hopefully starts this week," Mowbray captain Luke Scott said.
John Hayes and Jono Jones are out for the Eagles as batter Tom Dwyer will find his way back to the Eagles first grade side while the second inclusion is still under consideration.
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