Dundee head coach Steven Pressley has warned that Celtic will be a dangerous 'wounded animal' when the Scottish Premiership champions visit Dens Park on Sunday. Celtic have lost all three league matches in Dundee this season and suffered a recent defeat to Dundee United that left them five points behind Hearts in the title race.

Pressley's side beat Celtic 2-0 at Dens Park in October, their first victory over the Parkhead club since 2001. The Dark Blues have lost just once in their last six matches but could find themselves only two points clear of the relegation play-off spot before kick-off. Pressley emphasized that defeating Celtic requires a 'perfect performance' and acknowledged the need for some luck against the Old Firm.

Meanwhile, Pressley revealed that defender Luke Graham has ambitions of playing in the Premier League, with Rangers reportedly interested in the 22-year-old Scotland U21 international. The academy graduate has started 30 of Dundee's 31 Premiership fixtures this season after a successful loan spell with Falkirk. Pressley backed Graham to reach the 'very top' but noted that Dundee cannot provide the ambition the player seeks.