The Dutch midfielder suffered a blow to the head while training with the national side on Wednesday, prompting fears that he may be unavailable for next weekend's Merseyside derby.
Wijnaldum has taken time to settle in at Liverpool but has been in fine form during the last few games, scoring against Arsenal and Burnley and playing a key role in the draw at Man City.
Klopp is going to need a strong side to face Everton at Anfield, with the Reds determined to hold onto their fourth place in the Premier League.
Source: DSG