and you would expect Janssen to get some minutes and be eager to impress... with Son missing for Ajax both Llorente and Janssen will be fighting it out to take his place.
Janssen is not registered for CL.
The only way I see Janssen having any game time would be in the last few minutes of any games where we have a big lead or possibly in one or both of our last two PL matches if our top four place has been secured by then.