Southampton are expected to sign the Mali forward Moussa Djenepo this summer.
According to Daily Echo, the Premier League club have already agreed on a fee with Standard Liege for the player and the signing should be completed soon.
Southampton will pay around £14 million for the young forward.
Hasenhuttl has done well at Southampton so far and he will be looking to take them to the next level now. Saints need to back him in the market this summer.
The 20-year-old is highly rated around Europe and he could prove to be a quality addition in the long run.