Scott Bain, who joined Brendan Rodgers’s Celtic on loan from Dundee in the January transfer window, has previously worked with Falkirk manager Paul Hartley.
Rangers play host to Falkirk at Ibrox on Sunday in the Scottish Cup.
Conor Hazard has joined Falkirk on loan from Brendan Rodgers’s Celtic in the January transfer window.
Liverpool have been linked with Tony Gallacher of Falkirk in the January transfer window.
Jupp Heynckes was formally introduced as Bayern Munich’s interim manager on Monday, declaring that despite having retired four years ago he was “looking forward to the challenge” of leading the club through the remainder of the season, which will conclude a few days after his 73rd birthday.
Rangers let Luca Gasparotto go last summer after making just four league appearances for the club.
Tony Gallacher's performances for Falkirk reportedly attracted the interest of Manchester United and Barcelona - but Swansea City are leading the chase.
Rangers were linked with Falkirk starlet Craig Sibbald in January, along with Hearts, Aberdeen and Nottingham Forest.
Nottingham Forest's captain is one his way and Falkirk's prized asset could arrive in his place.
Former Glasgow Rangers defender Luca Gasparotto has joined Falkirk in the summer transfer window.