The injury picked up by Tomas Rosicky at Salzburg on Wednesday
is thought to be minor.
The Czech midfielder limped off just after the half-hour at the
Bulls Arena, seemingly in some discomfort.
However afterwards Arsène Wenger played down any fears.
"We don't think it is serious," said the manager.
"He had a tight hamstring and we did not want to take a
gamble."
