The two teenage wingers have been outstanding for the U21s and U18s this season at Chelsea.
Rosenior explained: "Ryan and Jesse will travel with the group, so they will be part of the squad for Wrexham,’ said Rosenior, who is helped by having former Chelsea Under-21s head coach Calum McFarlane as one of his assistants.
"I’m very fortunate to have Calum in our staff, who has an unbelievable understanding of the Academy, the players that are coming through. I want to develop players from within this Academy as well, so they’ll be travelling with us.
"Jesse’s really impressed me, Ryan's impressed, but it’s not just those two. There have been a few that I’ve got to see in training when they’ve been brought up that I’m really happy with.
"Reggie Watson has trained with us a few times, he’s really impressed me. It’s scary the age that he is. Young Mahdi (Nicoll-Jazuli) has been up a few times, he’s an outstanding talent as well.
"There are some outstanding young players in the group. We just need to make sure we put them in at the right time and they get the experiences that they need to continue their development."