Daniel Majstorovic is hoping highly-rated Emilio Izaguirre remains at Celtic next season to help the Hoops make amends in Europe.
Neil Lennon`s newly-assembled squad were still finding their feet when they crashed out of the Champions League and the Europa League at the first hurdles.
Gradually Neil Lennon has gelled his side together and, with Celtic leading the Clydesdale Bank Premier League table, in the final of the Scottish League Cup and with a home replay against Rangers in the Scottish Cup, there is talk of a treble in the air.
A key part of the Parkhead club`s success has been the Honduran left-back, who has reportedly attracted the attention of Aston Villa, Manchester United and Liverpool. However, Majstorovic is hoping the Izaguirre and the rest of the Celtic squad sticks together for next season.
"Everyone at the club wants to play in Europe so of course we were disappointed at the start of the season," he said. "It is not easy when so many new players came in to the club and it takes time to gel together.
"At the moment we work as a unit, we know exactly what to do out there and the mentality in the team is much stronger now. If we can stay together and grow together I think we will be very strong next season.
"Izaguirre is an unbelievable player. Of course he still has a lot of things to work on but he is an amazing player and I'm sure that he will be a top man.
"It is very important to keep him because he is a quality player and he makes a difference to the team and, as I said before, if we can keep this team together, I think we will be very strong next season."
While everything at Parkhead appears rosy at the moment, Majstorovic is taking nothing for granted.
"We are in a good way but we have to be ready for what's coming up and take it game by game," he said. "Rangers will always be a strong team and every game we play against them will be totally different.
"The most important thing is to focus on Motherwell on Sunday and we will see what will happens."
Meanwhile, Celtic have signed Cardiff defender Adam Matthews on a pre-contract agreement.
The 19-year-old's four-year deal will begin on July 1. Speaking ahead of Sunday's clash with Motherwell at Fir Park, Celtic manager Neil Lennon said: "He's a talented young player."