Medium-pacer Sammy, 23, returned the second best figures by a West Indian on Test but with seven for 66 in England's 60 run third Test win at Old Trafford, which gave he hosts an unbeatable 2-0 lead in the four-match series.
However, a groin strain sustained while batting on last day has put a question mark against the participation at Riverside of the first St Lucian to play Test cricket.
Sammy played an important role in a rejuvenated display by a West Indies side that has won just two of its last 38 Tests and coach David Moore, asked how being without him would affect the team, said Wednesday: "It would be disappointing after he had such a good role in his first Test match.
"It will leave a bit of a gap after what he has done for us - but I am very hopeful he will play.
"Even though he only got one wicket in the first innings he was very disciplined with the ball and he is like that every time he takes it.
"In the field he's excellent as well, always moving around and encouraging the guys.
"With the bat he got a good ball in the first innings but in the second he really applied himself. I thought he was going to keep going and just might have had a dream game."
Sammy played some fine strokes during more than an hour at the crease on his way to 25 before giving a sharp return catch to left-arm spinner Monty Panesar.
Moore added that Sammy deserved all the success that came his way because of his attitude.
"Darren Sammy is just a complete example of hard work. If you wanted to hold up someone to say 'this is what hard work can do' he's your man," Moore, who replaced fellow Australian Bennett King as West Indies coach after the hosts failed to reach the semi-finals of the World Cup in the Caribbean, explained.
Sammy rocked England with a spell of six wickets in 33 balls on Saturday which gave West Indies a foothold in the match after Michael Vaughan's men had extended their lead to more than 400 with seven wickets standing.
There was a noticeable sense of togetherness and shared enjoyment amongst the West Indies side as they celebrated Sammy's wickets and Moore said the team were starting to gel as a unit.
"Supporters on this tour have come up and talked about improvement in the side and the team spirit which is something you can really hang your hat on.
"The joy that the players express when they're sharing someone's high points plus the support the boys were getting from the balcony when we were batting was excellent.
"The team spirit is really coming together, there is no magic formula, the guys are just working hard together and when you do that you start seeing results," Moore added.
Fast bowler Ravi Rampaul remains unavailable for selection because of a groin injury.