Rayan scored a first goal for the Cherries on Saturday at Dean Court.
Murphy said on BBC Sport: “He grew into the game in the second half, more and more starting to get on it and try and dominate, as the whole team did actually.
“I mean, they've got another 19-year-old in Eli Junior Kroupi, who's a wonderful player.
“Their recruitment seems phenomenal.
“They seem to have ready-made replacements all the time, and you have to give them credit for that because the amount of players they've sold and still to be in the position they're in.
“This is really bad defending (from Lucas Digne), but still, the pace, the power, the positivity, and the finish there on his so-called weaker foot will do him the world of good to score on your first full game for your club and get the fans on board. He looks a super talent.”