Everton pair Anton Peterlin and Cody Arnoux will remain at Motherwell next week as Fir Park manager Craig Brown weighs up a summer move.The Americans featured in a bounce game against Celtic on Tuesday. [LNB]And Brown said: "They are good players and they are here for another practice match next week. [LNB]"If they maintain the promise that we've seen, they must be candidates for signing offers, although, obviously, we may have to compete to get them." [LNB]Arnoux, 21, was especially impressive in the 2-1 win over Celtic, earning Motherwell a penalty after being fouled by Thomas Rogne. [LNB]Motherwell have benefited from loan deals for Everton reserves John Ruddy and Lukas Jutkiewicz this season, with the latter likely to be kept on by Toffees manager David Moyes. [LNB]"In the event of perhaps the two loan players going back to Everton, we have started early looking at possible replacements," explained Brown. [LNB]"It just proves to the fans of Motherwell that we're not letting the grass grow under our feet. [LNB]"We might have to do a bit of negotiating to get them either on loan or there might be a transfer fee. [LNB]Brown admits the chances of keeping top scorer Jutkiewicz and Ruddy, who has kept 15 clean sheets in 30 SPL games, look slim. [LNB]The former Scotland manager added: "I'm not pestering him (Moyes) but every time I speak to him I say 'Come on, be kind and allow them to stay'. [LNB]"But I have very, very severe reservations about the prospect of them staying." [LNB]New York-born Arnoux joined the Merseyside outfit in August having previously played for Carolina Dynamo, who play in the fourth tier of the American soccer pyramid, the USL Premier Development League. [LNB]Peterlin, 22, who had played for USL Premier Development League side Ventura County Fusion during his collegiate off-season, had weeks earlier signed a one-year contract with the Barclays Premier League club. [LNB]Like Arnoux, the San Francisco-born Danish passport holder has yet to make his competitive debut for Everton's first team.