The Swans boss also dropped a hint that there was more to come next time around after both players were summoned to be with the Trinidad & Tobago squad for two World Cup qualifiers but only Lawrence featured and that was only in the first game.
Scotland has been reported (via social networking site facebook) to have made comments about what he had to do to get into the side and Roberto was unhappy at the length of the trip for two players.
"I've been very disappointed over what has happened so something could happen over the next call-up," he told the Evening Post.
"We will have to wait and see."
Martinez though refused to blame the trip for Scotland's poor showing at Selhurst Park as he added “I think he is disappointed and I am because when you see players go away you want them to be active. I think he and Dennis Lawrence are both very disappointed.”
“I just don’t think it clicked for him and we didn’t get him the best of service.”
Martinez is not the only manager to appear to fall out with the Soca Warriors, this week, Sunderland manager Roy Keane was blasted as having a mean streak by Jack Warner the FIFA vice president over his refusal to release Dwight Yorke for international duty. As ever Keane wasn't taking that lying down as he hit back "I think Jack Warner must be small because he's got small-man syndrome
"I told him he was a disgrace and that I would not employ him. The man is a clown. I told him what I thought of him and where he should go.
"Although he's working for Trinidad and Tobago he's writing under Fifa letterheads, trying to impress everybody. Forget all this talk about directors of football – if he's vice-president of Fifa, God help everybody. He's obviously quick to let people know he's in a position of power. But sometimes these people get up the ladder and I don't know how.
"If I'd known what Dwight was going to do, I wouldn't have given him a new contract
"Dwight's a clown and he's on an ego trip; he's brought this on himself. He's retired from international football about five times.
"He's Trinidad and Tobago's most famous player and he's got a stadium named after him out there but he's 36 years old, he can't play two games in a few days and he hasn't played for us all season because he's had a busted cheekbone."
