Atlético de Kolkata suffered their third successive defeat in the 2015 Hero Indian Super League on Thursday evening and coach Antonio Lopez Habas expressed disappointment but said the loss against Delhi Dynamos FC wasn’t the end of the road for the reigning champions.“It is very disappointing for us. We lost three games in a row. Gustavo Dos Santos scored in the last moment and we couldn’t do anything about it,” Habas told reporters after the 1-0 defeat at the Salt Lake Stadium.“I think so [when asked if the ATK could still qualify for the semis]. There are many games to play. We have the possibility to go and qualify.”ATK have conceded quite a few late goals this season. Habas chalked up it to a lapse in concentration. “Normally, it’s a lapse in concentration. Maybe we have to fix this the next match.”The Spaniard made no bones about ATK missing marquee player Helder Postiga who is out injured. “I don’t want to lie. It’s clear that we need a striker. It’s very, very clear for all,” he said.When asked whether striker Iain Hume was lacking support up front, Habas said: “Today we didn’t have Arata [Izumi], [Javi] Lara and others. But we have to make do with the players we have in the squad. This is the situation and we have to solve the problem.”ATK next play the in-form Mumbai City FC. On the prospect of facing Mumbai, Habas said: “I have to recover the mentality of the players because three losses in a row can affect the mentality. We also have injury problems to deal with.”