Goalkeeper Alex Cisak became the O’s ninth signing in the summer of 2015 as he put pen-to-paper on a two-year deal with the Club.
Cisak had enjoyed a loan spell at Orient during the 2014-15 season having joined from Burnley at the start of February, and went on to make 19 appearances in League One.
Originally born in Krakow, Poland, before moving to Australia at the age of two, Cisak started his career at Leicester City but made his professional debut at Accrington Stanley having moved there in August 2010.
Following a successful 2010-11 campaign the goalkeeper was then signed by Oldham where he made 59 appearances during two years before making the switch to Burnley.
Despite joining the Clarets in 2013, Cisak was unable to force himself into the first team and was restricted to only two appearances at Turf Moor, leading to loan spells at York and Orient during the 2014-15 season.
Cisak is eligible to play for the Australia national team having represented them at under-20’s level, and has been called up for the first team squad on several occasions.