George Johnston was forced off at half-time of Bolton Wanderers' draw against Gillingham with a knee problem which the Whites are still to properly assess.
The Wanderers central defender was replaced at the back for the second half by Will Aimson.
Wanderers fell behind in the first half after John Akinde put the Gills ahead, before Kyle Dempsey doubled the visitors' advantage shortly afterwards.
READ MORE: Antoni Sarcevic breaks silence on Bolton Wanderers departure after shock Stockport County move
Bolton were booed off at the break, but fought back after half-time as Dapo Afolayan halved the deficit as full-time approached.
And Kieran Lee slotted home from Declan John's low cross to give Wanderers a deserved point and put an end to the club's losing streak of three matches with a deserved point in a 2-2 draw.
Johnston came off at the break and Evatt revealed Wanderers are unsure at the severity of the knee problem he has picked up.
Afolayan meanwhile needed treatment on a shoulder injury in the second half and carried on until full-time, with Evatt hoping that one the club's star players is alright.
Evatt said: “He’s got a bad knee, just when dribbled into the box at the end of the first half. He felt a bit of a crunch at the back of his knee. We don’t know what that is.
"Dapo, I think his shoulder went out and then came back in again second half, so that shows you where he’s at, the way he finished the game and how he went on to the end in probably a lot of pain. Hopefully we can make sure he’s okay because he’s a huge player for us.
“The most important thing for me today is that we ignore what went on first half, we try and put to the back of our minds the last 10 days, and we focus on what was a really positive second half, a real good fightback and now we have to regroup, reset and go again next week.
My Bolton Wanderers provides news about the Trotters from the Manchester Evening News.
“All we want is what’s best for Bolton. The most important thing is the club and the badge, everything else, we’re just caretakers and we’re just here for now but we’re not going to be here forever.
"Every decision that’s made, every time we step out on the pitch, it’s what’s the best for this football club moving forwards and what’s gone on has gone on. We want to move past that now, but for now it’s about focusing on that second half and the positives we got from it, the belief and confidence we regained from it, but also we showed the world that we are together and we will continue fighting for this football club.
"We’ve had a wobble, yes, but it is only a wobble, the players will come again and they showed that second half.”
Yesterday was the first game as Ricardo Almeida Santos as the club's captain after the departure of Antoni Sarcevic to Stockport County.
And Evatt believes the defender taking the armband is part of the next stage in his career.
He said: “For me it’s the next stage in Rico’s development. We want him to become that leader. Rico is a fantastic person, someone that all the players respect, someone that all the staff respect and he leads out on the pitch with his performances so it was a natural progression for him to become captain of this football club.
“He’s ably assisted by Eoin who has so much more to give. Yes, he’s had a tough time, we all have, but we’ll back him, we’ll support him and he showed today again what a fantastic player he is and how much it means to him. He loves playing for this football club.”