The former Werder Bremen defender is expected to be included in the trainer's squad this summer, but Cacau still has plenty to prove if he is to earn a spot
The 27-year-old recently sustained ankle ligament damage, and Arsenal manager Arsene Wenger recently stated he expects the defender to be out for the remainder of the club season.
However, on Tuesday the player insisted he would be available for selection for the summer tournament, and now Low has confirmed that Mertesacker is still in the running for a call-up.
"We are in contact," the trainer told Goal.com. But we assume that he will be able to get fit for the Euro."
Low also commented on the status of Stuttgart striker Cacau, who has been included in Low's 22-man squad to face France next Wednesday, claiming the player has deserved his inclusion but is by no means guaranteed selection for the summer tournament.
"Cacau has again earned a chance. "But there remains the possibility that a new player can jump up."
In addition to Cacau, Monchengladbach striker Mike Hanke has been mooted as an option, as has Leverkusen target-man Stefan Kiessling.
Looking forward to Euro 2012, Low's hopes are high for his side, with the coach believing his team should be looking to go all the way.
"Our goal is, of course, to advance to the final," he said.
Germany take on France in a friendly on February 29. Kick-off from Bremen is scheduled for 20.45CET.