Roma director Gian Paolo Montali believes his side should be entirely team-orientated ahead of their trip to Ukraine on Tuesday.The Serie A giants travel to Donetsk to face Shakhtar, trailing 3-2 after an exciting first-leg clash at the Stadio Olimpico in the Champions League Round of 16.The first-leg loss means Roma now need to win in Ukraine to progress and the feat will not be easy given the fact that Shakhtar have not lost at home in any competition since October 2008, but Montali has called for a team effort in order to get the victory."The only thing that matters is our performance on the pitch," Montali said."Everyone should focus on what they can do for the team. This is the only thing that matters now. We should be fully concentrated on what happens on the pitch and we'll see what result we can get.""Of course the focus that everyone is bringing to this away match is to try and achieve an important result."The 3-2 loss paved the way to then-manager Claudio Ranieri's resignation, with replacement Vincenzo Montella having overseen two wins and a draw in his three games in charge."This team has gained seven points (since Montella arrived)," he said."As far as the results are concerned, the situation is favourable. We're very impressed by the change in the coach. The team seem to have the commitment and the desire to get an important result."