Neither Sweden nor Ireland were fully happy with their 1-1 draw at Euro 2016 on Monday, and both now have injury concerns as well.
Ireland manager Martin O'Neill said he had to take forward Jon Walters out in the 64th minute because of Achilles tendon problems.
"Jon's not great. He is a concern," O'Neill said. "He was recovering but then said he felt his Achilles early in the game. He is being checked and we will check again tomorrow."
Sweden coach Erik Hamren had defender Peter Lustig limp off shortly before half-time with a so-far undisclosed problem.
"I haven't talked to the doctor yet. We will know tomorrow," Hamren said.
Erik Johansson took Hamren's place in the team while James McClean came on for Walters at the Stade de France.
Sweden are up against Italy on Friday and Ireland next play Belgium on Saturday in Group E.