A bumper crowd is expected with Huddersfield Town travelling to the SCL Stadium tomorrow.
Here are five players who played for both in the last 10 years.
Ollie Norwood
A product of the Manchester United Academy, the midfielder joined the Terriers as his first permanent switch outside of Old Trafford in 2012.
An instant success in Yorkshire, the Northern Ireland international was virtually undroppable in his two full seasons with the club.
Impressing at the John Smith's Stadium, Reading paid an 'undisclosed fee' in the summer of 2014 to take him to the then Madejski Stadium.
Again, quickly becoming a standout with his passing range and ability to keep possession, the 30-year-old played 92 matches across two campaigns.
Moving on from Berkshire in 2016, Norwood won promotion to the Premier League with Brighton, Fulham and Sheffield United in the years since.
Still at Bramall Lane, he is nearing 200 appearances for the Blades.
Danny Williams
A teammate of Norwood's at Reading, Williams was a true fan favourite during his time in Berkshire.
Joining in 2013 following the club's relegation from the Premier League, the USA international made one midfield spot his own and became indispensable for his combative nature.
His stand-out campaign came in his final one, helping Jaap Stam's Royals into the play-off final against Huddersfield.
Out of contract after the defeat, the former Bundesliga star opted to move to the Wembley opponents for a shot at the Premier League.
Unfortunately injuries meant his impact was limited, playing just 30 times across two seasons.
Another year in Cyprus followed before the German-born favourite hung up his boots to start a fashion label.
Tom Ince
The first of two current Reading players with Huddersfield history, Ince had established himself as a top end Championship star with the likes of Blackpool and Derby County before the Terriers signed him in 2017.
A solitary campaign with David Wagner's men, the winger scored three times as they survived in the Premier League for the debut season.
Newly-relegated Stoke City splashed £10m on the Liverpool Academy graduate, but 14 goals in four seasons was not the impact they had hoped for.
Invovled in a loan-swap with Liam Moore for the second half of last season, Tom, along with dad Paul Ince, helped move Reading away from relegation danger.
Making his move permanent in the summer, Ince has put in arguable a Player of the Season performance so far- contributing two goals and plenty of strong all-round shifts.
Tommy Elphick
A well-respected servant for Brighton and Bournemouth, newly-relegated Aston Villa signed the former Cherries captain in 2016.
A regular in their first season in the second tier, he saw game time limited and was loaned to Berkshire in January 2018.
Struggling with injury throughout, he featured just four times as Paul Clement kept the Royals up on the final day of the season.
Joining the Terriers following Villa release, he played just 14 times before injury forced him to hang up his boots, where he now coaches at former club Bournemouth.
Naby Sarr
Playing for Huddersfield as recently as last season, the 29-year-old centre-back joined Reading in the summer.
66 appearances in two years for the South Yorkshire outfit was preceded by a five year stint with Charlton Athletic.
Two starts for Reading have come since his long-awaited arrival, but injury looks to have ruled him out of a battle against his former club this weekend.
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