Goals in each half from Raul Garcia and Nino moved Osasuna to within a point of Levante as they enhanced their chances of playing European football next season with a 2-0 win at Ciutat de Valencia.
Garcia put the visitors in front with a wonderful finish from Nino's flick-on after 16 minutes before Andres Fernandez was called into action on numerous occasions to keep his side in front, most notably saving Xavi Torres' downward header and from Arouna Kone when the Ivorian was through one-on-one with the keeper.
And Osasuna took advantage of the hosts' profligacy as Garcia and Nino again combined with 11 minutes remaining for the latter to score his first goal since October.
Both sides have taken the league by surprise this season to challenge for Europe, but it was Osasuna who were more clinical on the day.
The opener arrived when some poor Levante defending allowed a long-throw to reach Garcia on the edge of the area and he smashed a left-footed volley past Gustavo Munua.