Kick off is at 7.45
Republic of
Ireland are in Plovdiv to face Bulgaria tonight in the first leg of their Playoff, ahead of the return game at the Aviva Stadium on Sunday.
The losers of the tie will drop into the third-flight for the next edition of the competition and Hallgrimsson believes it's 'really important' to stay up.
Kick off is at 7.45 this evening.
Leixlip's Nathan Collins and Maynooth's Mark Travers are both involved with the squad.

New York City Defender Kevin O'Toole In Ireland Squad For Final World Cup Qualifiers
The Ireland Team Have Been Named For Their Game Against Japan
Thursday Morning Sports Update
Tipperary Have Seven Players Included On This Year's PwC Hurling All-Star Team
Ellistown's Michael Noonan Scores 1 of 4 Goals To Beat Panama In The Under-17 World Cup Campaign
Ireland U17's Make History As They Play In Today's FIFA U17 World Cup
Wednesday Morning Sports Update
Kildare Primary Schools Soccer Finals Results