Ronchi returns for Black Caps as McCullum's back needs constant care Too valuable to be used as a wicketkeeper: Brendon McCullum. Luke Ronchi's ticket into the New Zealand one-day team looks set to be extended after coach Mike Hesson confirmed skipper Brendon McCullum's wicketkeeping days were all but over. New Zealand's squad for the five-match series against West Indies will be named on Thursday, day one of the third Test in Hamilton. And it seems Ronchi, who also represented Australia in the shorter forms of the game, will continue the role he performed ably in Sri Lanka when McCullum was home nursing a serious back injury that still hampers him. We're unlikely to use him [McCullum] as a keeper. He's too valuable a player for us to consider using him as a keeper," Hesson said. New Zealand reassemble in Hamilton today after they were given two days off by Hesson in the wake of their stunning innings and 73-run victory over West Indies inside three days. McCullum tasted his first Test victory as skipper, after 10 previous matches without a win. After having serious thoughts about retirement as he struggled with two protruding discs and arthritis in his back, he battled through Dunedin and Wellington and scored a breakthrough ton on his home ground. Hesson said McCullum remained a day-by-day proposition who required "constant maintenance." He still throws himself around in the field and puts himself in compromising positions. So far, so good. We'd only rest him if his back was at a point where he couldn't play. That could well occur. He's made some good progress. He's always a bit stiff but it doesn't seem to affect his movement too much. Ronchi scored 13 not out against Bangladesh, and 49 and 23 against Sri Lanka in three ODI innings after being recalled. After McCullum he's the next best gloveman and will probably be required to bat No.7 in a clogged New Zealand middle order with a number of all-rounders. Hesson and the selectors have a logjam of contenders for their ODI squad. Opener Martin Guptill is certain to return after blazing 185 for Auckland against Central Districts, with Jesse Ryder a strong chance to partner him for the Boxing Day series opener in Auckland. It's no secret the selectors are keen to bring Ryder back for his first international in nearly two years, having scored a century and two half-centuries from his past five first-class innings for Otago. He would provide huge box office value for New Zealand Cricket over the holiday period. Fairfax New Zealand