Trent Alexander-Arnold suffered a worrying twisted ankle in Liverpool's 3-2 defeat Arsenal that caused him "too much pain" to carry on, Jurgen Klopp said.
Manager Klopp said Alexander-Arnold's injury showed troubling signs of swelling, with Liverpool planning to get the right-back checked out on Monday.
The substitution of the England defender at half-time came after a dismal first-half performance, where he was arguably at fault to some extent for both of Arsenal's goals prior to the break.
For their first, after just 58 seconds, Gabriel Martinelli ran in behind the full-back to drive a low shot past Alisson.
Darwin Nunez brought Liverpool level, but Arsenal regained the lead just moments before the break when Martinelli again charged down the left, this time tracked by Jordan Henderson. Alexander-Arnold rushed to help, but his presence only appeared to confuse the situation and Martinelli was able to centre for Bukayo Saka to touch home from close range.
Klopp stressed Alexander-Arnold's withdrawal was enforced, however, just as Luis Diaz's departure from the game with a knee complaint had been late in the first half.
"Lucho [Diaz] we had to change before [half-time]," said Klopp. "Something with the knee, not good. He will have a scan and then we will know more.
"I have no idea about the extent, and then on top of that Trent is bad as well with the ankle.
"[He] twisted the ankle, not good. Trent never, in seven years, went off if he could have played on. He was in too much pain, it started swelling immediately, so we will have to see."
That injury looked to be caused when Alexander-Arnold was fouled by Martinelli.
Alexander-Arnold's England place has recently been called into question ahead of the World Cup, with the Liverpool man left out of Gareth Southgate's matchday squad for last month's Nations League game against Germany.
New England Revolution 1-4 Inter Miami: Messi at the double as Herons run riot
Lionel Messi scored twice and laid on a goal for Luis Suarez as Inter Miami retained their three-point lead at the Eastern Conference summit with a 4-1 win over the New England Revolution.
A franchise-record crowd of 65,612 people witnessed a flying start from the Revs as they took the lead within just 37 seconds at Gillette Stadium. Carles Gil pounced on some sloppy play from Miami to tee up Tomas Chancalay, who lobbed Drake Callender for the opener.
However, Miami roared back with Messi leading from the front. They had a deserved equaliser just after the half-hour mark, Messi slotting home after latching onto Robert Taylor's throughball.
Messi had his second after 67 minutes, producing another composed finish after former Barcelona team-mate Sergio Busquets split the New England backline.
Messi was involved in another two goals as Miami added some gloss to the scoreline late on; his first-time shot was saved by Henrich Ravas but Benjamin Cremaschi was on hand to score on the rebound after 83 minutes, then the Argentine teed up Suarez for a curled finish five minutes later.
Miami stay three points clear of Supporters' Shield holders FC Cincinnati at the top of the East, with the Orange and Blue keeping pace by beating the Colorado Rapids 2-1 on Saturday.
Data Debrief: Messi rolls back the years
Ahead of Saturday's game, some feared Miami boss Gerardo Martino would opt to rest Messi after speaking of the risks of fielding the eight-time Ballon d'Or winner on New England's artificial pitch.
However, Messi came through 90 minutes with another mesmerising performance. He has now recorded a goal involvement in 10 straight club matches for the seventh time in his glittering career, last doing so for Barcelona between September and December in 2018.
Al-Khaleej 0-1 Al-Nassr: Ronaldo misfires on return as Laporte nets winner
Cristiano Ronaldo returned from suspension but failed to find the net as Al-Nassr secured a 1-0 win over Al-Khaleej on Saturday, with Aymeric Laporte coming up with the decisive goal.
Ronaldo was in action for the first time since being sent off for an elbow in a 2-1 Saudi Super Cup loss to Al-Hilal earlier this month, with his initial two-match ban being reduced to one on appeal.
He missed three good chances as Al-Nassr threatened to fall further behind runaway Saudi Pro League leaders Al-Hilal, but former Manchester City defender Laporte spared his blushes by nodding Marcelo Brozovic's deep free-kick into the bottom-left corner with 68 minutes gone.
Al-Nassr remain nine points adrift of Al-Hilal at the summit in spite of their win, with Jorge Jesus' team unbeaten through 28 games this season as they close in on a record-extending 18th title.
Data Debrief: Ronaldo misfires on return
Ronaldo was presented with the Saudi Pro League's Player of the Month award for March ahead of kick-off, having scored four goals in three league appearances last month.
However, his sights were off on Saturday as he failed to net despite three of the visitors' four big chances, as defined by Opta, falling his way. He led all players on the pitch for expected goals (1.27 xG), shots (five), shots on target (three) and touches in the area (nine) without reward.
Huddersfield all but relegated from Championship while League Two play-off spots decided
Huddersfield Town saw their relegation from the Championship all but confirmed after a 1-1 draw with fellow strugglers Birmingham City on Saturday.
The Terriers avoided a defeat that would have seen them relegated on Saturday, but even a win on the final day over promotion hopefuls Ipswich Town will not be enough unless they overcome a huge goal difference of 15 goals with Plymouth Argyle.
Birmingham remain in the other relegation place and now must beat Norwich City to stand a chance of staying up with Sheffield Wednesday, Plymouth and Blackburn Rovers also still in danger.
At the other end of the table, the Canaries dropped points in a 2-2 draw with Swansea City, leaving the door open for Hull City, who face Ipswich Town later today.
SportsMax is the Caribbean sports channel of choice, committed to providing sporting content of the highest quality to the Caribbean, delivered by a team of highly innovative, passionate and qualified professionals.
(876) 619-7629
digitalmedia@sportsmax.tv
