Liverpool may have suffered a serious injury blow as Alisson was forced off during the 1-0 win at Crystal Palace.
The Brazilian goalkeeper has only recently returned to the line-up having struggled with a thigh issue last month.
Liverpool goalkeeper Alisson went off injured away at Palace in the second half
But he looks set for a spell on the sidelines with an apparent hamstring problem, with the visibly furious 32-year-old punching the ground in anger, while having his head in his hand.
His injury forced Arne Slot into handing an unexpected debut for third-choice shot-stopper Vitezslav Jaros.
Usual back-up Caoimhin Kelleher missed the trip to south London due to illness.
And this saw Jaros, who has enjoyed four loan spells away from Anfield, replacing Alisson in the 79th minute for his first Liverpool appearance.
Jaros has spent time at Irish outfit St Patrick’s Athletic, Notts County, Stockport and most recently at Austrian giants Sturm Graz.
And he made an impressive cameo off the bench, where he notably denied Eberechi Eze after the England international ran clear on goal.
For Alisson, he will now surely withdraw from Brazil’s squad for their upcoming World Cup qualifiers against Chile and Peru.
And ex-Chelsea left-back Scott Minto fears that the former Roma star could now miss handful of crucial games for Liverpool.
Speaking on talkSPORT commentary, he said: “You could see it as soon as he kicked the ball away.
“He sat down and started beating the ground with his hand – he knows that not just him coming off today, that’s a pulled hamstring.
GettyAlisson could be set for a spell on the sidelines after picking up a suspected hamstring injury[/caption]
Arne Slot was forced into handing a debut to Czech Republic international Jaros
“I’m worried for Liverpool, he could be off for a good few weeks.”
And that could be a big worry for Slot, with Liverpool’s level in quality to take a significant step up following the upcoming October international break.
In their first Premier League match back, Liverpool host Chelsea in Merseyside.
Just three days later they travel to Germany to take on RB Leipzig in the third round of fixtures in the revamped Champions League.
And Liverpool then pit their wits against fellow title challengers Arsenal at the Emirates on October 27 – a ground they have lost at in each of the last two seasons.
Another away clash swiftly follows, with Brighton to welcome the Carabao Cup holders to the Amex Stadium for their round four enocunter.
The same two teams immediately square off at Anfield days later, before Liverpool face Bayer Leverkusen and Aston Villa ahead of the November international break.