The Hoops landed the Moroccan defender from Dynamo Kiev on a five-month loan deal before the close of the summer transfer window last night.
Scottish Player of the Year Izaguirre is sidelined with a broken ankle and Parkhead boss Neil Lennon has brought in El Kaddouri as cover.
Zemmama has played with the 30-year-old in his national team and reckons he will be a success in Scotland.
He said: "Badr is a top defender. I have played with him for the Moroccan national team and I have played against him.
"He is one of the top players in the Moroccan side and I believe he will be a really good signing for Celtic.
"He is big, strong and powerful. He likes to get forward and put in crosses. Sometimes he likes to play as a left-winger.
"Badr is a quality player and I know he could make a big impression at a club like Celtic."
Meanwhile, Gary Caldwell today tipped new Wigan team-mate Shaun Maloney to fill the massive void left by Charles N'Zogbia at the DW Stadium.
Caldwell was delighted when he heard the Barclays Premier League club's £1million signing of Maloney had gone through yesterday.
The Scotland defender played alongside the little forward during his time at Parkhead and knows exactly what he is capable of on his day.
He thinks that if the 28-year-old can avoid the injuries which have blighted him in the last couple of seasons he can excel in the English top flight.
In fact, Caldwell reckons he is the perfect replacement for N'Zogbia, who joined Aston Villa for £9.5million in the summer, in Roberto Martinez's side.
He said: "Losing Charlie in the close season meant we have lost a bit from our attacking wide play. He was a real threat for us there.
"Victor Moses has done very well for us since the start of the season and we have signed Albert Crusat from Spain.
"But Shaun will certainly add to the competition in attacking and wide areas. He has played in the top flight in England before and will not be daunted.
"Shaun is also excellent at set-pieces. He poses a real goal threat at free-kicks. I am pleased he has joined us and think he will do well."
Caldwell, who is preparing for the Euro 2012 double-header against the Czech Republic and Lithuania with the Scotland squad, was asked about Maloney by Wigan boss Martinez.
The centre-half feels Maloney will boost Wigan's survival hopes – if he can stay fit. He revealed: "I have spoken to people at Wigan about Shaun and I spoke with Shaun on the phone about Wigan yesterday morning.
"I was pleased when I heard the deal had gone through because he is a very talented player who will be a huge asset.
"Obviously, he has had his problems with injuries and has not played as much football as he would like in the last few seasons. But, if we can get and keep him fit at Wigan, then we will have a very good player."