Boston, June 19 -- Scotland head coach Steve Clarke believes his side may perform better as underdog when it takes on Morocco in its second World Cup group match on Friday.

Scotland tops Group C after beating Haiti 1-0 in its opener, which also marked its first World Cup match since 1998 and its first win at the tournament since 1990. One more point would all but secure Scotland's first-ever place in the knockout stage.

"Against difficult opponents, we have to be very good," Clarke said at a press conference on Thursday.

"I feel Morocco are really, really good. They reached the semi-finals in the last World Cup andI have a feeling this Moroccan team is probably even better.

"Sometimes the Scottish psyche, we're more comfortable as under...