A report from the Daily Mail has claimed that West Ham have been told that they will need to pay £15 million for the 6 foot 7 striker, who has been in great form for Stuttgart this season.
The only recognised striker that West Ham have is Michail Antonio, and David Moyes is keen to add to his options up front in the summer, especially with Antonio's poor injury record.
Whilst Moyes can play Jarrod Bowen and Jesse Lingard as false nines, they are unorthodox strikers and he is keen to have another established striker to avoid having to play players out of position.
The 23-year-old Austrian forward is a proficient target man for Stuttgart, and he has racked up an impressive tally of 12 goals and four assists in 23 Bundesliga games, with seven of his goals coming in his last six Bundesliga games.
This is a remarkable record, especially since he has started just 13 of those 23 games.
At the age of just 23, and having a value of £15 million, it will be quite an investment for the future by Moyes, but it could be one that completely revitalises the Irons, as they look to push on for the European spots.
West Ham have impressed this season, with a blend of fluidity and structure helping them challenge for Europe, scoring an impressive 40 goals in 26 Premier League games, the eighth-highest in the league.
Stuttgart on the other hand have had a mixed campaign, after an excellent start to the season was met with some mid-season struggles, leaving them languishing in mid-table in the Bundesliga.