He said: “We played to a decent level, but we were not so impressive. The victory gives us strength and hope for the final matches.”
Rijkaard added: “We played a positive game against a team that usually gives us problems. Our goals were very good. I am confident we can win our next three matches and that our main rivals will slip up.
“There are a number of potential Liga champions and the key now is to live with the pressure because it is not easy to win all the remaining games with this kind of tension.
“The first team to slip up will fall by the wayside.”