Di Resta expecting tough qualifying

Force India's Paul di Resta believes it will be a struggle to make Q3 after Friday's practice session for the Korean Grand Prix. However, the Scottish driver is positive that the team can be a much stronger force in the race after completing several longer runs. "Obviously we have our targets and I think we had good balance today and Mercedes has moved up so if we want to get into Q3 then that is going to be difficult," said di Resta, 13th quickest today .

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