Sevilla were comfortable 3-0 winners to secure safety from relegation.
Navas said: "He has experience. He has given us peace of mind to get results. We achieved victories that have gotten us out of there and it has been shown that we play better without that pressure that we had before.
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"The team deserves everything, we have fought all year to get out of there."
He added, "Let's continue. The year has been difficult, but the team showed the pride this shirt deserves. There are many points at stake and we have to go all out for ourselves and the fans."