Castleford Tigers captain Michael Shenton wants to see proof his side have “learned lessons” from their recent near misses.
They face Wakefield Trinity Wildcats in Manchester tomorrow desperate to get back to winning ways after losing their last two games.
Defeats against Huddersfield Giants – albeit by small margins – have taken some of the gloss off their excellent start to the season which sees them sat in joint-third.
Ex-England centre Shenton said: “We put so much into both games especially Huddersfield when we threw that away a little bit. We were in a great position against Leeds at half-time but they just beat us in the energy battle in the end.
“They killed that game and we committed some rugby league suicide in the second half.
“We have to take lessons from that and move forward; that’s important for us. We’re quite a newish team and Leeds showed us how to kill games off.
“We showed great spirit though, only losing by eight points despite them dominating that second period, and we’ve a great opportunity this weekend to show we have taken lessons from it.”
Castleford could give a debut to former Wigan and Salford prop Lee Jewitt following his arrival from France while Michael Channing returns at centre in place of Ashley Gibson.
Meanwhile, Frankie Mariano – who joined from Wakefield last autumn and has been an ever-present so far – has signed a new two-year deal at Wheldon Road.
“I feel really comfortable,” said the 27-year-old, who started out at Hull KR who and scored three tries this season.
“I’ve never felt as comfortable as I do now in this team which is a big factor and it’s showing in my game.
“I wanted to play in every match, but it’s not something I expected with being in a brand new side and having to work my way in.
“Obviously I’ve done something right for Daryl Powell to keep playing me and this is exactly what I needed and wanted.
“Hopefully I can carry on, keep progressing and getting better,” he said.
Castleford coach Powell added: “He has continued to improve throughout the year and has lots of room to develop his game even further.”