After scoring the opening goal against Manchester City on Tuesday, the 22-year-old again showed a clinical eye for goal to score either side of half-time.
With the rain continuing to team down, Victor broke the deadlock in the 42nd minute. Following a right-wing cross from the impressive Álex Valle, Robert Lewandowski got a foot to the ball to take it perfectly into the path of the alert Victor to head into the net from close range.
After a half-time break of only five minutes due to the earlier weather delay, Victor repeated the trick to double Barcelona's lead in the 54th minute. Again Valle provided the cross and again Victor was at the right place to stretch and get enough on the ball to take it past Madrid goalkeeper Thibaut Courtois.