Alexander-Arnold had been struggling with the problem before linking up with England and on Wednesday it was decided the right-back wouldn't recover in time to feature against the Czech Republic and Montenegro.
Alexander-Arnold has since played against Bayern Munich and Fulham, but was feeling his back issue again when he reported for global duty on Monday.
Liverpool defender Trent Alexander-Arnold has been forced to pull out of the England squad due to injury.
GM Plans $1.8 Billion US Investment After Trump's Criticism
We'll continue to work with the stakeholders in the community because we want to do the right thing for the community. The company made headlines recently by shuttering its Lordstown, Ohio plant .
Apple AirPower wireless charging launch could be sooner than we thought
On the other hand, the first generation Apple AirPods is now available for a reduced price of Rs 12,299 on Flipkart. Users who aren't interested in the new wireless charging case could get their second-gen AirPods a bit sooner.
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The cycling team said Ineos would "continue to fund the current team in full, honouring all existing commitments to riders, staff and partners".
Fabian Delph, John Stones, Luke Shaw and Ruben Loftus-Cheek have already pulled out, while Marcus Rashford is reportedly nursing an ankle complaint.
Gareth Southgate will now choose between Manchester City's Kyle Walker and Tottenham Hotspur's Kieran Trippier for tomorrow night's game against Czech Republic (7.45) at Wembley and Monday's trip to Montenegro.