The Bundesliga side remain locked in talks with Twente for the striker, but are hopeful that a deal will be struck in time so he can travel with the team to their training campBorussia Monchengladbach are aiming to complete the signing of Twente forward Luuk de Jong ahead of their pre-season training camp, which starts on July 20.
The 21-year-old has emerged as one of the hottest attacking prospects in Europe courtesy of his performances in the Eredivisie and the Europa League over the past season, and has subsequently attracted a long list of suitors in the process.
Gladbach are confident they can reach an accord, but are eager to confirm the move as soon as possible, with other clubs no doubt keeping an eye on proceedings should their negotiations with Twente drag on any further.
"In general we have until August 31, but it's clear that every club and every coach is interested that a player can also participate in the training camp," the German side's financial chief Stephan Schippers told Bild.
However, he also made it clear that the club would not be held to ransom, stating: "We won't buy him for any price."
Regarding potential replacements for De Jong, the Enschede outfit have reportedly lined up PSV ace Tim Matavz and Jelle Vossen of Genk.