Spartak Moscow battled back from a goal down to draw 1-1 with Celta Vigo in the first leg of their Uefa Cup clash.
The last 32 encounter is evenly poised after Maxim Kalinichenko cancelled out a first-half effort from Antonio Nunez.
Nunez fired Celta ahead with a close-range drive on 41 minutes following good work from Gustavo Lopez and Nestor Canobbio.
The Spaniards were pegged back just after the hour mark as Kalinichenko found the target with a deflected free-kick to leave the contest well poised ahead of the second leg in Vigo.
Holders Sevilla put themselves in pole position to reach the last 16 by claiming a 2-0 win at Steaua Bucharest.
A trip to Romania had a daunting look to it, but Sevilla produced a polished display.
Christian Poulsen broke the deadlock from close range just before the interval and a penalty from Fredi Kanoute 19 minutes from time handed Sevilla a cushion ahead of the second leg.
Sevilla passed up a number of chances, while Gabriel Bostina's shot which was tipped over by keeper Andres Palop was Steaua's best effort.
Headlines, though, could well be taken by an unseemly incident as German referee Florian Meyer briefly halted the contest after coins were thrown towards a linesman.