Defender Martin Keown has joined Reading after being released by fellow Championship side Leicester.
Martin Keown left Leicester on Thursday, having joined last summer
The former Arsenal centre-half has agreed a contract until the end of the season at the Madejski Stadium.
But he will not be able to face the Foxes in the FA Cup fourth round on Saturday as he played for them against Blackpool in the third round.
The 38-year-old had his contract at Leicester terminated on Thursday after signing last summer.
Reading chairman John Madejski told the club website: "This is an excellent signing for the club and Martin's presence gives Steve Coppell another very strong defensive option as we approach the critical period of the season.
"He has achieved so much and his experience will be of enormous benefit to the squad.
"He is a natural winner, and I hope his attitude and desire will have a positive effect on all our players as we aim to bring Premiership football to the Thames Valley.
"Martin has been playing regularly for Leicester in recent weeks, and although it is a shame he is cup tied for this weekend's game, it will give him time to get to know his new team-mates ahead of our important game against Plymouth next weekend."
With Arsenal, the former England international won three Premiership titles and three FA Cup winners' medals.