The striker, who joined the Saddlers on Friday morning after the club and Boreham Wood came to terms on an surprise transfer, was withdrawn from the clash with the Pilgrims midway through the second-half after appearing to pick up a knock during an aerial challenge.
Speaking, who was shortly after his side secured three well-deserved points thanks to goals from summer signing Andy Cook, and Luke Leahy, Dean said; "Morgan has had a full pre-season and he has played a lot of minutes down at Boreham Wood but he only came in yesterday. He is going to be a great investment for the club.
"As he was brought down for a free-kick, the lad landed on top of him and he felt his hamstring tighten. It was more of a precaution to take him off so that he didn't do too much damage to it."
"As he was brought down for a free-kick, the lad landed on top of him and he felt his hamstring tighten. It was more of a precaution to take him off so that he didn't do too much damage to it."