Arsenal manager Unai Emery says Ole Gunnar Solskjaer has made Manchester United a much more dangerous team since taking over from Jose Mourinho. Emery's side host United in the FA Cup fourth round on Friday and the Spaniard expects a stern test from Solskjaer's revitalised team. Arsenal drew 2-2 with United at Old Trafford in the Premier League last month, shortly before Mourinho was sacked as manager after a wretched run of results.

Since then, Solskjaer, hired from Molde as interim boss, has overseen seven successive wins in all competitions. Solskjaer's approach has won over a United squad that grew tired of Mourinho's spikey personality, and Emery is suitably impressed. "It's a different team. It's the same players but they're playing with a big performance now," Emery told reporters on Wednesday. "I was watching their last matches and each player has a lot of confidence, with big performances, and now they are very dangerous.