The Hoops centre-half has returned to top form at club level after an early-season lull and is excited about getting the chance to take on England, who beat world champions Spain on Saturday, at Wembley Stadium.
"In the last four matches for Celtic I have returned to a level that I am happy with," he said.
"Now I'm looking forward to playing England. It will be a good test for us."
"I wasn't worried about being dropped for the Denmark game. I knew the boss wanted to look at Jonas," he added.
"It's good to have competition as it keeps you on your toes."