Rangers striker Kyle Lafferty is facing a race to be fit for the key World Cup qualifier against Slovakia and will have a scan on his knee on Monday.
Lafferty limped off in the second half of Saturday's 1-1 draw with Poland because of the problem after a heavy challenge - which came with Northern Ireland in the driving seat, after he had made the breakthrough in the 37th minute.
Lafferty will be closely monitored, and manager Nigel Worthington said: "The situation with Kyle is ongoing, but we will know more after the scan."
Motherwell defender Stephen Craigan certainly hopes Lafferty makes it.
"Kyle was having a great game and asking questions of Poland," said Craigan. "He was winning things in the air and getting in behind them.
"That was his best 45 minutes in a Northern Ireland jersey, but then unfortunately he had to come off."
Lafferty showed a cool head to drill a shot under Artur Boruc after a flowing move involving Damien Johnson and David Healy.
The Poles, looking for a victory to re-ignite their campaign, were rattled and almost conceded a second goal in the 65th minute.
Lafferty's replacement Martin Paterson latched on to ball from Steven Davis, only to fire wide of Boruc's post.
It proved to be a costly miss by the hard-working Burnley striker, with the home side regrouping and snatching a point late on.
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