Tottenham are among the clubs monitoring developments with Julian Brandt at Bayer Leverkusen.
The 23-year-old Germany
international is understood to have a £21.5million release clause for this summer.
Mauricio Pochettino is weighing up a move for the versatile attacking midfielder ahead of a potential move in time for next season.
Brandt has scored six goals and claimed 11 assists for Leverkusen which has led to Tottenham raising interest in the German.
Brandt could fill the void left by Christian Eriksen if the Dane chooses to move on at the end of this season.
Eriksen, who has just one more year left on his current deal at the north London outfit, has been linked with a move to La Liga with Real Madrid and Barcelona keen on securing his services.
Tottenham's immediate attention will be on their Champions League final clash with Liverpool and then they will look to complete summer deals as soon as possible.