Carlos Vela hit an injury-time winner as Real Sociedad jumped into a Europa League qualifying spot with a 2-1 win over Espanyol in the Primera Division on Saturday.
Vela's last-gap effort lifted the hosts above rivals Villarreal with four games of their season remaining, while the result means Espanyol slip to 10th place.
Jhon Cordoba had put the visitors ahead in the 23rd minute but the home side equalised two minutes after the half-hour mark when a Sergio Canales shot deflected home off Espanyol defender Manuel Lanzarote.
Substitute Jonas struck an 82nd-minute equaliser as Valencia denied Osasuna a long-awaited home victory.
The hosts appeared poised to snap their four-game winless streak at El Sadar stadium after Oriol Riera had put Osasuna ahead in the 19th minute.
However, Jonas' late show secured a 1-1 draw and ensured Valencia avoided heading into this week's Europa League semi-final first leg at Sevilla on the back of a defeat.
Relegation-threatened Getafe remain in deep trouble after only picking up a point from a goalless draw at Levante.
Cosmin Contra's side wasted two opportunities to take the lead after a positive start to the first half, but had to survive the final 10 minutes of the game with 10 men after Alexis Ruano was dismissed for picking up a second yellow card.
The Madrid side stay in the relegation zone, while Levante missed out on the opportunity to mathematically secure their top-flight status for another year, but have little to worry about, sitting on 41 points.
The La Liga action continues on Sunday with relegation-threatened Almeria hosting mid-table Celta Vigo in the early kick-off.
Bottom club Real Betis are next up as they travel to face 14th-placed Rayo Vallecano, followed by European hopefuls Sevilla's home game against Granada.
The big game of the day sees third facing fourth as Barcelona take on Athletic Bilbao at the Nou Camp.
Monday's match pits Malaga against Villarreal at La Rosaleda.