Legana faces a tough task to stay in touch with the top two sides when the TCL resumes after a week's break tomorrow.
The reigning premier sits half a game behind this week's opponent and will need to be in top form if it is to surpass Beauty Point in second spot.
Durhams captain-coach Andy Gower said key players Jamie McClenaghan, Matty Wells, Gary McCarron and Cory Taylor will all miss to injury or holidays.
``It is going to be an interesting game for both sides . . . I think the outcome will decide who finishes third or second - so it's pretty important,'' Gower said.
``Beauty Point beat us in the first round so we are looking to overturn that . . . and we play good cricket and win our fair share at home, so I think that is an advantage.''
Beauty Point captain-coach Stuart Prewer's men have played good all-round cricket in the first half of the season, with Jason Savage and Adam Turner destroying line-ups with the ball.
Prewer said Beauty Point would be at near full strength with only Adam Jacobson unavailable.
HADSPEN takes on Longford at home, which won three of its past four matches before Christmas.
Chieftains captain Anton Balym said teenage pace bowler Nick Price was the only confirmed out and that the first game back was always a danger game.
Longford captain-coach Aiden Hume said tomorrow's encounter would be much different to the sides' round 2 clash and that the country Tigers had to bat the full 40 overs to ensure victory.
Batsmen Ben Dodd and Dean Cousens will miss.
The undefeated TREVALLYN will be without Matty Cocker when it takes on last-placed Diggers.
Trevallyn's opening batsmen, Andrew Fitz and Shannon Rumble, have piled on the runs in the first 11 games, amassing 880 runs between them and will be vital for the side's premiership push.
Diggers captain-coach Brent Kettle said he was looking forward to seeing how his players matched up against the competition's best.
Kettle said Justin Paul would replace the injured David Swane.
The fifth-placed UNI MOWBRAY will be missing its leading batsman Shane Evans when it plays cross-town rivals ACL.
Last time they met Uni scored 230 batting first and then bowled ACL out for 195.