Ely and Albion hoping for a chance to play.
Ely have been strengthened by the arrival of Malcolm Curtis and Anthony Curtis - who could turn out to be Chris Duffin's long-term successor - from St Albans.
Albion must do without reliable all-rounder Gary Jones, who is determined to make a quick return from illness, but Jason Cross returns at back stop and his partnership with pace ace Matt Hopkins is vital if the Black & Whites are to return home with the points.
Gower Sports will again have to make do without pace bowler Lee Griffin for the visit of St Michael's.
Captain Chris Britton deputises in the bowling box, while Mike Rudd strengthens the batting line-up - weakened by the loss of reliable opener Peter King with a hand injury - by playing at back stop.
St Michael's, who have posted several three-figure scores at Roath Park in recent seasons, will look to the likes of Martin Phillips, Brendan Dowd and Paul Hurley to cash in on Griffin's absence.
St Peter's get their season underway at home to ISTL Llanrumney, who demolished Gower Sports last week.
Mark and John Dunleavy fill the bowler-back stop combination for the Rocks, who include Shane Dyer and Luke Goddard after rugby duties with Dinas Powys.
Ahead of their midweek rest and next week's big clash with Grange Catholics, Llanrumney will be looking to establish themselves at the top of the table having made a good start to the season.