West Brom are reportedly rivalling Stoke City and Leicester for the striker
The striker, 21, currently plays for Slovan Bratislava in his homeland of Slovakia, but could be heading to the Premier League before the transfer window closes at the end of this month.
Baggies boss Tony Pulis has already brought in two strikers this summer - with Rickie Lambert and Salomon Rondon signing - but the uncertain future of Saido Berahino means another forward would not go amiss.
Zrelak can also play on the left side of midfield, and the youngster could provide another wing option for Pulis, as the manager looks to fix the creativity issue in his squad.
Who is Adam Zrelak?
Zrelak is a 21-year-old attacker who plays for Slovan Bratislava, having signed for the Slovakian giants in January this year.
He started his career with Ruzomberok, scoring 15 goals and registering eight assists in 66 games.
Since signing with Slovan, Zrelak has usually been utilised as part of the three attackers sitting behind lone forward Tamas Priskin in a 4-2-3-1 formation. He occupies both a left-sided position, as well as a central role, although he has also partnered former Watford forward Priskin up front in a 4-4-2.
Playing in his deeper attacking role, Zrelak has managed six goals and five assists in 21 games, including appearances in the Europa League qualifying rounds.
He looks to have a lot of potential, and has impressed well in the, admittedly lower quality, Slovakian Premier League, and West Brom could be signing a real talent if they complete a deal for Zrelak.