Chelsea interim boss Guus Hiddink says a Premier League top-four finish will be "difficult" but believes it is still possible following their 3-0 win at Crystal Palace. <br /> <br />The Blues' four-match run without defeat is their longest this season and moves last year's champions to 14th in the league, still 13 points adrift of a Champions League spot. <br /> <br />But in beating seventh-placed Palace for their first away win since August, the Blues made a convincing case that the second half of the season might be better for them. <br /> <br />"Everyone knows there's a lot of quality but sometimes a team which has just become champions has a tendency to become complacent," said the Dutchman. <br /> <br />"When I started, we said mathematically when we could get to a Champions League position it would be lovely. It's difficult because this league has become so strong. Everyone can win from everyone, which means it's very difficult to get there. <br /> <br />"But as long as we play like today we can be happy and then results will come. It's possible still, but a long way to go."
