Webber was available on a free transfer and was able to join Pompey outside the transfer window, according to Sky Sports.
The 27-year-old has been without a clubs since his contract with Sheffield United expired at the end of last season.
Webber was available on a free transfer and was able to join Pompey outside the transfer window, according to Sky Sports.
The 27-year-old has been without a clubs since his contract with Sheffield United expired at the end of last season.
