Liverpool have been offered encouragement in their reported interest in Borussia Dortmund's Kevin Grosskreutz after the winger again expressed his Premier League ambition.
The 24-year-old has long been linked with a move to Anfield and scouts are expected to watch Wednesday's UEFA Champions League match against Ajax in Amsterdam.
Germany international Grosskreutz, a friend of Liverpool loanee Nuri Sahin, is under contract with Dortmund until the end of next season but he has hinted at a move to England.
He is quoted as saying in Bild: "Should I continue with my career in a foreign country at some point, the Premier League of England would be my top priority.
"I really like the way football is played over there. I have no concrete thoughts on that. In terms of contracts, my first conversation will be Borussia Dortmund."
All three goals came in the second half on Tuesday night as Adebayo Akinfenwa's 13th goal of the campaign put Northampton on their way to a third win on the bounce. An own goal from Kevin Ellison and an excellent stoppage-time free-kick from Ishmel Demontagnac secured the victory in League Two.
Boothroyd said: "It's nice to get three wins on the trot but it was a very different game from our previous two wins.
"Morecambe came with a game plan to try and stop us from playing and we had to do something different to get in front. That's something our supporters have got to get used to when teams come here but that's a compliment for us.
"Sometimes it take 90 minutes to get in front but once we got the first goal I felt we commanded the second half and we won the game quite convincingly in the end. Ben Tozer's long throw-ins are a brilliant weapon, that's 16 goals we've scored from them since I've been here, they are so difficult to defend and we have to make use of it when we can.
"The more we play and the more wins we get the more confident the players will be. But we mustn't be complacent and get carried away, we've got a big derby at Oxford coming up on Saturday and we've got to keep on top of the players so that we give a good account of ourselves."
