ACQUIRED: Transferred from FC Copenhagen on 12/20/18
Gregus began his professional career in Slovakia at his hometown club, FC Nitra, in 2009. He spent the next seven years of his career from 2009–2015 playing for Banik Ostrava where he made 100 appearances, scoring four goals. In 2015 he joined FK Jablonec where he made 54 appearances, scoring nine goals and tallying two assists. In 2016 Gregus joined one of the biggest clubs in Europe, FC Copenhagen in the Danish Superliga, where he has appeared in 107 games, including appearing in the 2016 UEFA Champions League.
2021: Made first appearance on April 16 at SEA...Provided first assist on July 28 at LAFC
2020: Made first start on March 1 at POR...Scored first goal and provided his first and second assists of the year on March 7 at SJ... Provided third and fourth assist on July 22 vs COL...Provided fifth assist on August 29 at FCD...Provided sixth assist on September 19 at HOU...Missed September 22 at CLB due to red card suspension...Provided first MLS Cup Playoff assist on November 22 vs COL
2019: Made MNUFC debut on March 2 at VAN...Scored first MLS goal on March 16 at LA...Provided first assist of the year on April 13 vs NYC...Provided second assist and was given a red card on April 19 at TOR...Missed April 24 vs LA due to suspension...Provided third assist on May 4 vs SEA...Provided fourth assist on May 25 vs HOU...Provided fifth, sixth and seventh assists on June 29 vs CIN...Scored first goal and provided first assist in the Open Cup on July 10 vs NM...Provided eighth assist on July 20 at RSL...Provided ninth assist on September 1 at LAFC...Provided 10th assist on September 25 vs SKC...Provided 11th assist on September 29 vs LAFC...Scored first MLS Cup Playoff goal on October 20 vs LA
INTERNATIONAL: Gregus debuted with the Slovakia national team on March 31, 2015 against Czech Republic. He has since been capped 22 times for the Slovakia senior team, scoring two goals.