Bolton Wanderers FC (@OfficialBWFC) November 10, 2014
Gudjohnsen, 36, spent two seasons with Bolton in the second-tier from 1998 to 2000, scoring 27 times in 77 appearances before being brought to Stamford Bridge for £4 million.
The ex-Iceland international would establish himself as a firm fan favourite during his time in west London, recording 66 goals and 31 assists in 238 games, while winning two Premier League titles and the League Cup in 2005 under Jose Mourinho.
From there he would go on to earn an £8 million switch to Barcelona in 2006, helping the Catalan giants lift the Champions League in 2009 during Pep Guardiola’s first season in charge.
After subsequent spells at Monaco, Tottenham Hotspur, Stoke, Fulham, AEK Athens, Cercle Brugge and rivals Club Brugge, the veteran went on trial with Danish outfit FC Copenhagen in August but, despite impressing manager Stale Solkbakken, a deal failed to materialise.
Bolton boss Neil Lennon has now allowed him to train with the first-team in order in order to maintain his fitness levels as he searches for a new club, but there’s no word at this point on whether an impressive stint could lead to a deal with the Championship side.