Alcácer has been on fire with 10 goals in seven games for both Dortmund and Spain since joining Borussia on loan for the rest of the season.

“We have not talked to the player or his agent, but basically it looks good,” Dortmund’s sports director Michael Zorc told Sky before Saturday’s away league game at Stuttgart.

After a flurry of goals, Dortmund are now eager to complete the permanent transfer from Barcelona and extend Alcácer’s stay past June.

“Dortmund has already told us that they will make use of the purchase option for Alcácer,” said Barcelona’s managing director Òscar Grau.

The deal is set to cost Dortmund 23 million euros (RM110 million), as well as five million euros (RM24 million) in bonuses.

Alcácer scored a hattrick for Dortmund a fortnight ago, then scored three times in two games while on international duty with Spain.