Trinidad and Tobago will be without in-form batsman Jason Mohammed as well as pacer Shannon Gabriel and batsman Lendl Simmons for their Regional Four-day match against the Leeward Islands, which bowls off tomorrow at Warner Park, St Kitts.

Mohammed returned to Trinidad yesterday to receive treatment for a strained hamstring, while Simmons and Gabriel were called up to join the West Indies team for the ongoing home series against Zimbabwe.

As a result, T&T were forced to make to make five changes ahead of tomorrow's encounter.

Wicketkeeper Steven Katwaroo, pacer Teshawn Castro, along with spinners Amit Jaggernauth, Kavesh Kantasingh and Imran Khan have joined the T&T squad in St Kitts, while Mohammed, Nicholas Pooran and Samuel Badree returned home following T&T's three-wicket win over the Leewards in their Regional Super50 match at Warner Park on Sunday.

Yannick and Kjorn Ottley, who were called in for the Super50 match, will also remain in the squad for the four-day game.

The Ottley brothers, along with Katwaroo have yet to represent T&T in regional four-day cricket and even with all the changes and new faces, team manager Omar Khan still believes T&T have the experience and strength to do well.

He said: "There are some inexperienced players but there are also some experienced guys in the squad. It is an opportunity for the younger players to establish themselves and for the senior players to really step up their game.

"We have to manage the players and the changes. Simmons and Gabriel will join the West Indies team and we have new players coming in.

"At the end of the day, they are all professionals. Kjorn and Yannick were part of the 50 overs side but they are also new to the T&T four-day team, so we might see a few players making their four-day debut for T&T," Khan explained.

The Ottley brothers have both represented the Combined Campuses and Colleges in the regional four-day tournament, while Castro played one match for T&T against the Leewards last year at the same venue.

Katwaroo, made his senior team debut in the 2011 Regional Super50 but has never played first-class cricket. He will make his first class debut tomorrow.

Looking back at T&T's Super50 win on Sunday, Khan said the victory will boost his team's confidence ahead of the four-day game and that it was good to see the batsmen step up.

"The bowling was good. We restricted them to 238 and Badree really did well for us in the first ten overs. But there are some areas we have to work on, where they scored 40 runs in the last few overs," he said.

In terms of the team's batting, Khan said: "Again it was another fighting effort and the guys demonstrated that the never-say-die attitude is becoming part of the team.

"They fought right down to the end. It is good to see (Justin) Guillen back in the runs and he was looking set for a century before he was run out," the T&T manager added.

"Young Yannick Ottley steadied the innings coming down to the end and the batsmen are coming along. At the end of the day it was a comfortable win and that should lift the spirits of the guys as they go into the four-day game," said Khan.

The T&T manager also revealed that pacer Ravi Rampaul sat out T&T's game on Sunday due to a slight injury concern. But he insisted his absence from the starting line-up was a precaution and that the pacer should be fit for the up-coming four-day assignment.

T&T squad: Rayad Emrit (captain), Adrian Barath, Evin Lewis, Justin Guillen, Yannick Ottley, Kjorn Ottley, Yannic Cariah, Ravi Rampaul, Amit Jaggernauth, Kavesh Kantasingh, Imran Khan, Teshawn Castro, Steven Katwaroo (wicketkeeper). David Williams (coach), Omar Khan (manager).

Regional Super50 points standings Teams GP W L Pts NRR Jamaica 2 2 0 9 +0.954 T&T 2 2 0 8 +0.219 Windwards 3 2 1 8 +0.125 CCC 3 1 2 5 -0.181 Barbados 3 1 2 5 -0.387 Guyana 3 1 2 4 -0.581 Leewards 2 0 2 0 -0.349v