Down the years there have been a number of players who have pulled on the shirts of both Preston North End and Leyton Orient.
Current PNE skipper Tom Clarke will tonight be facing the club he turned out for on loan in 2011.
The defender played 10 games for The O’s during a fourth-month loan spell in the 2011/12 campaign.
One of those came in a 2-1 win over North End, a result which halted a run of seven straight league wins for Phil Brown’s men.
Another in the PNE squad to have played for both clubs is goalkeeper Jamie Jones.
Recent circumstances mean he will not get the chance to face his former employers.
Having lost his place to Thorsten Stuckmann in November, North End are set to give Sam Johnstone his debut in the televised clash after signing him on loan from Manchester United earlier in the week.
It seems likely that Stuckmann will move to the bench, with Jones missing out on the matchday squad.
He made 179 appearances for Orient in six years at Brisbane Road, the last of those being the play-off final against Rotherham. The O’s lost on penalties that day at Wembley.
Jones swapped London for Lancashire in June, signing a two-year contract with Preston.
The 25-year-old played the first 17 league games of the campaign, including North End’s 2-0 win over Orient at the end of October.
A player to feature for both PNE and Orient in the recent past was Aaron Brown. In fairness, mention of his name probably sends a shudder down the spine of many Preston supporters.
He was signed on a short-term basis in February 2012, being among the cluster of Graham Westley’s signings in his early weeks in charge.
A centre-half by trade, Brown will probably be remembered best for playing as a striker in the defeat away to Sheffield Wednesday.
That was his fourth and final game for North End – he was released later in the season.
Brown played for Orient in the 2010/11 season, joining from Aldershot.
A player to turn out for both Preston and The O’s who is far more fondly remembered at Deepdale is Ricky Heppolette.
He wrote his name into North End folklore as part of the 1970/71 Third Division title-winning side.
It was a Heppolette goal which gave PNE a big shove towards that title crown.
In the penultimate game of that season, second-placed Preston travelled to leaders Fulham who were seen as champions elect.
The London side, having led the table for 24 weeks, only needed a draw to win the league.
But Heppolete’s diving header 22 minutes into the Craven Cottage clash delivered a 1-0 win for North End.
A few days later, Preston beat Rotherham at Deepdale to pip the Cottagers to the title.
Heppolette, who had joined PNE as an apprentice, left North End in the 1972/73 season.
He later played more than a century of games in the colours of Orient.
Jason Harris, who formed a reputation as a super-sub in David Moyes’ time as Preston boss, was signed from Orient.
Another player from that era to have turned out for both clubs was left-back Dominic Ludden.
Someone who ended up at Orient after being at Preston was midfielder Ian Bogie.
He joined North End in 1989 as part of a swap deal which saw Gary Brazil move to Newcastle.
Hailed the ‘new Gazza’, Bogie never lived up to that tag but still put in some decent displays.
At the end of his contract, the Tynesider moved to Millwall for a tribunal-fixed £145,000 fee.
After two years with the Lions, Bogie joined Orient for £50,000.