Gareth Southgate does not expect to have Dele Alli fit for England's clash against Panama but does not blame the midfielder for playing through the pain against Tunisia.
Alli suffered a thigh injury during the 2-1 win in Volgograd but still managed to complete 80 minutes before being replaced by Ruben Loftus-Cheek.
The Tottenham star tweeted to say it was a "slight injury" but was still forced to sit out training on Thursday, although he did at least take part in some of Friday's session before the squad travelled to Nizhny Novgorod.
Southgate thinks Alli is recovering well but concedes it is not always easy for players to ask to come off during such important matches as those at a World Cup.
"It's always difficult. Most players are very aware of their body and know the things they feel they can play on with," he told a news conference.
"We're no further behind with Dele's recovery so we've not lost any time in that instance, not through design but a little bit of luck and him understanding it was not that serious.
"It's the only muscle injury we've had over the three and a half weeks. To be at this stage with 22 players available is unlikely. We'll get contact injuries as the tournament progresses but I certainly as a manager don't take a risk with a player, but players aren't exactly all going to tell you 100 per cent how they are. I've been a player and sometimes you can be economical with the truth."
England can reach the last 16 with a win over Panama but they will need to do so in front of a relatively low number of fans who have made the trip from England.
It has been suggested political tensions with Russia have put off some supporters from travelling, but Southgate thinks the potential cost has also forced a lot of people to avoid coming.
"I think there's obviously been a lot going on away from football, in the lead into the World Cup," he said.
"It's quite expensive for our fans to come to the tournament and there are internal flights here. We're really appreciative of the supporters who have come. In other tournaments, we've maybe had more numbers, but the vocal support of our fans the other night was brilliant, it really gave our team a huge lift. I think we have similar numbers tomorrow and maybe more in Kaliningrad."
20. November 2018
|Jones sceptical over Pocock injury|
|Sane encouraged despite Germany´s ´annoying´ Nations League draw|
|Character got Netherlands through, says Koeman|
19. November 2018
|Netherlands´ focus still on Euros - Van Dijk|
|Ireland will be ready for qualifiers, insists O´Neill|
|Smith undergoes successful surgery, Redskins sign Sanchez|
|Germany 2 Netherlands 2: Dramatic five-minute fightback seals Oranje progression|
|Denmark 0 Republic of Ireland 0: Thrills at a premium again in Aarhus|
|O´Brien could return for start of Six Nations|
|Cavani: Neymar and I are ´friends, brothers, team-mates´|
|Pothas named Windies interim head coach|
|LA Galaxy planning for Ibrahimovic stay|
|NFL will return to Mexico City in 2019|
|Broner vows to end Pacquiao´s career in Las Vegas|
|UEFA should punish PSG and Man City, says LaLiga chief|
|Teenage driver Floersch has ´no fear of paralysis´ after operation|
|Mancini bemoans Italy´s misfortune in front of goal|
|Sprint legend Johnson ´pretty much back to normal´ after stroke|
|Bournemouth defender Adam Smith out for three months|
|World champions France out to end 2018 on a high|
|I told him there´s no future in football! A-Rod relieved to be ignored by Mahomes|
|Dembele must focus and be more responsible - Suarez|
|Neymar could return one day – Barca chief|
|Cole backs West Ham to keep Arnautovic|
|Injury rules Bernardo Silva out of Poland clash|
|Lamar Jackson debut start ´spectacular´ - Ravens coach Harbaugh|
|Babar run out the turning point, laments Sarfraz|
|West Ham boost London Stadium capacity to 60,000|
|A great advertisement for Test cricket - Williamson revels in stunning win|
|Van Dijk one of the world´s best - Klaassen|
|Floersch had ´angel on her shoulder´ in horror crash|
|Gascoigne charged with sexual assault|
|I am going to stay at Chelsea and fight, insists Giroud|
|Hansen to make announcement on All Blacks future|
|I have reached the top by joining Chelsea - Sarri|
|Bonucci tells Italy boo boys to ´live with less envy´|
|Dramatic Pakistan collapse gives Stead first New Zealand Test win|
|Button enjoying racing for first time in years|
|Dortmund chief not planning Pulisic sale|
|Theismann: Smith leg break ´heart-wrenching´ to watch|
|Wolves defender Jonny suffers knee injury|
|Holmes to meet with Sharks amid NFL switch talk|
|LeBron made 51 points ´look easy´, says Walton|
|McGuire signs four-year deal with Cowboys|
|Bears beat Vikings to extend NFC North lead|
|Peng overcomes Davis in Houston final|
|Kerr says this has been his toughest stretch as Warriors coach|
|LeBron scores 51 in Lakers´ win, Warriors fall to Spurs|
|Win more than Djokovic? Let´s chill out – Zverev|
|Steelers´ rally highlights wild day of close, last-minute finishes|
|Modric not worried about Ballon d´Or|
|Saints pull away for blowout victory over Eagles, extend winning streak to nine|
|Martinez laments loss of control by Belgium|
|Logano claims first NASCAR Cup championship|
|Luis Enrique delighted with attitude of Spain´s squad|
|Stevens tells Celtics to get ´tougher´|
|Griezmann: Being Messi´s lieutenant played a part in rejecting Barcelona|
|Curry proud of how Warriors handled Green-Durant incident|
|Courtois: Belgium thought Nations League job was done|
18. November 2018
|Howell ends 11-year title drought to deny record-breaking Rodgers|
|Robben dismisses Bayern title talk|
|Huge blow for Redskins as QB Smith breaks tibia and fibula|
|Switzerland 5 Belgium 2: Seferovic treble crowns incredible comeback|
|Titans DC Pees taken to hospital during Colts game|
|Spain 1 Bosnia-Herzegovina 0: Debutant Mendez spares Morata´s blushes|
|Peterson goes sixth on rushing touchdowns list|
|Titans QB Mariota suffers elbow injury|
|Djokovic hails much-improved Zverev|
|Arnautovic refuses to discuss West Ham future after Austria win|
|Redskins QB Smith carted off after gruesome ankle injury|