Ekholm (undisclosed) is day-to-day ahead of Thursday's home game with the Sharks, Tony Brar of Oilers TV reports.
Ekholm didn't participate in Wednesday's practice and is questionable for Thursday's contest. The news comes just two days after he scored his first career hat trick, which highlights his recent seven-point, five-game run of scoring. Overall, the 35-year-old blueliner has six goals, 26 points, 95 shots on net, 50 hits and 87 blocked shots across 54 games this season. He will likely have to rejoin the mix at Thursday's practice if he wants a chance play against the Sharks.