After a shocking season ended without Western Sydney Wanderers making the finals, the club are back in action after already having had almost two months off since their last game.
Babbel also counts Patrick Ziegler as virtually a new signing, after injuries kept him sidelined for most of the last campaign with only six games to his name.
The German - whose father was born in Australia - is said to be close to full fitness again and set to shine next season according to his coach.
"The season starts in October and he will be 100 percent," said the German coach. "Very happy that he is this good condition."
Lopar is expected to slot straight into the number one role for WSW with regular keeper Vedran Janjetovic ruled out with a long-term injury which will see him out of action for three to six months, after an erratic season last campaign.
"For me it was clear that okay, we will have some changes," admitted Babbel after his side's disappointing title tilt.
"We have to do something. I'm very happy with the players."
The Wanderers are now targeting Leeds United who just missed out on promotion to the Premier League from the Championship last season after a disappointing end to their season saw them slip up in the play-offs.
Forward Mitchell Duke was relishing being back on the training field with a big game at their new home ahead of him.
"It's good," he said this morning. "There's quite a few fresh faces, which is always quite good to see. You can tell everyone's hungry to get straight back into it.
"There's so much look forward to in that game. It's going to be our first game in the new stadium. It's against a strong opposition who's a massive club in England who's got a lot of history,
"It's going be a massive test for us and it's always nice to test yourself against teams and players like that, to see where you're at and see what you need to get to before the season starts."