Here, Rangers News has a look at every player to cross the Old Firm divide in Glasgow and play for both Rangers and Celtic.
15 pre-WWII Rangers & Celtic players
Before the Second World War, it was certainly more common for players to end up at both Rangers and Celtic in their careers as opposed to post-war times.
Here is every player to play for both Old Firm giants before the Second World War began in 1939.
- READ MORE: Why Rangers vs Celtic is Called The Old Firm
Tom Dunbar
- Celtic (1888-1891)
- Rangers (1891-1892)
- Celtic (1892-1898)
John Cunningham
- Celtic (1889-1892)
- Rangers (1892)
Allan Martin
- Rangers (1891-1892)
- Celtic (1895-1896)
Alex King
- Rangers (1895)
- Celtic (1896-1900)
George Livingstone
- Celtic (1901-1902)
- Rangers (1906-1909)
Alec Bennett
- Celtic (1903-1908)
- Rangers (1908-1918)
Tom Sinclair
- Rangers (1904-1906)
- Celtic (1906-1907)
Robert Campbell
- Celtic (1905-1906)
- Rangers (1906-1914)
Hugh Shaw
- Rangers (1905-1906)
- Celtic (1906-1907)
Willie Kivlichan
- Rangers (1905-1907)
- Celtic (1907-1911)
David Taylor
- Rangers (1906-1911)
- Celtic (1918-1919)
David McLean
- Celtic (1907-1909)
- Rangers (1918-1919)
Scott Duncan
- Rangers (1913-1918)
- Celtic (1918-1919)
James Young
- Celtic (1918)
- Rangers (1918-1919)
Tully Craig
- Celtic (1919-1922)
- Rangers (1923-1935)
5 post-WWII Rangers & Celtic players
Only six players since the end of the Second World War have dared to represent both Rangers and Celtic, the first being Alfie Conn in 1977.

Alfie Conn
Conn started his senior career with Rangers in 1968 and won three major honours with the Ibrox giants, the biggest being the 1972 European Cup Winners’ Cup.
He made 154 appearances across six years at Rangers before moving south to Tottenham Hotspur. In 1977, Conn did the unthinkable by moving back to Glasgow and signing for Celtic.
The midfielder lifted the Scottish League title and the Scottish Cup with Celtic, but made significantly less appearances than he did for Rangers.
Despite later playing for Celtic, Conn is inducted into the Rangers Hall of Fame.

Mo Johnston
Johnston stunned Scottish football when he made the move from FC Nantes to Rangers in 1989, having previously turned out for Celtic.
The Glaswegian forward was a prolific marksman for Celtic between 1984 and 1987, scoring 72 goals in 128 games, as well as winning a league title and Scottish Cup.
After his two-year spell in France, Johnston told reporters at a press conference that he would be returning to Scotland to re-sign for Celtic.
However, he turned down the opportunity and moved to Rangers instead, becoming the most high profile Roman Catholic to sign for the Light Blues.
Between the 1930s and 1970s, Rangers adopted a policy whereby they would not sign players who they knew were Roman Catholic.
It took a while for Rangers fans to appreciate Johnston, who went on to win back-to-back league titles with the Ibrox giants.

Steven Pressley
Yes, former Scotland international defender Steven Pressley played for the Rangers first-team, making 44 appearances between 1992 and 1994.
He joined Rangers in 1990 from Inverkeithing United Boys Club and would secure three major Scottish honours whilst in Govan.
Pressley went on to play for Coventry City, Dundee United and Hearts before making a free switch to Celtic at the end of 2006.
Despite only spending a year-and-a-half at Celtic, he managed to win a league and Scottish Cup double.

Mark Brown
Brown is certainly more known for his time as goalkeeper for Inverness Caledonian Thistle and then Celtic – but he did play some games for Rangers.
Five to be exact, three of which he kept clean sheets in. That was between 1999 and 2000 before Brown made the short switch to Motherwell.
In 2007, Brown signed for Celtic to provide back-up for first choice goalkeeper Artur Boruc.

Kenny Miller
Kenny Miller remains one of the last players to play for both Rangers and Celtic. The striker came through the ranks at Hibs before Rangers secured his £2m signature in 2000.
His Ibrox career started with a bang as Miller netted 10 goals in his first 14 matches. But his game time dwindled towards the end of the season and he left for Wolves in 2001.
Miller enjoyed five successful years at Molineux and rejected to chance to sign a new contract in favour of joining Celtic in 2006.
His first goal for Celtic came against Rangers in the September 2006 Old Firm derby, with Celtic winning the game 2-0 at Parkhead.
Miller’s time at Celtic was fruitful, but didn’t last too long. Derby County signed him for £2.25m in August 2007 before making his return to Rangers the following summer.
Miller is one of only two players ever to cross the Old Firm divide twice, Tom Dunbar being the first in the 1890s.
