England goalkeeper David James holds talks with Celtic tomorrow over a possible move to Parkhead from Portsmouth.
The Scottish side's coach Neil Lennon told media of the possible move after already signing five new players this summer and promising more to come.
The 39-year-old James' future has remained uncertain since his contract with relegated Pompey expired at the end of last season.
Earlier, Sunderland manager Steve Bruce revealed he is interested in signing James and keeping him in the English Premier League.
Bruce is looking for a keeper as cover for Scotland international Craig Gordon, who is likely to be sidelined for three months with a broken arm.