Eleven men in pale green shirts playing 11 men in dark green shirts on a lush green turf.
Yes, the Wales v Portugal semi-final at Euro 2016 caused all kinds of confusion among citizens of Planet Internet.
People wanted to know just why are both teams playing in their 'away' kit...
The most bizarre kit colour combination at #WALPOR - turf green on dark green on light green. What's this all about???
-- Dmitry Shishkin (@dmitryshishkin) July 6, 2016
What is the point in BOTH Wales and Portugal wearing their away kit?! #WALPOR
-- Dominic Stewart (@TheDominator93) July 6, 2016
Don't get why both teams in away kit, worst still they both have green in them, don't they usually toss for it? #WALPOR
-- Warly Warlock (@WarlyWarlock) July 6, 2016
Surely, one of the teams should be wearing their home shirts?
Let's be honest, one of these sides should be wearing their home shirt for this (ideally us) #WALPOR
-- Jim Smallman (@jimsmallman) July 6, 2016
Surely one of them could have worn their first kit? #WALPOR
-- Mark Chapman (@markchapman) July 6, 2016
Yeah, it's all pretty confusing...
Confused as to why either team isn't wearing their 1st kit #WALPOR
-- Wasim Sumun (@WasimSumun) July 6, 2016
It's like a fashion crime has been committed on the football pitch.
-- Kit Crimes (@KitCrimes) July 6, 2016
Of course, Welsh fans let their imaginations run wild about their rival team's kit inspiration...
-- Candice Haridimou (@candii_h) July 6, 2016
So how did this happen? Twitter is full of (mock) theories...
-- broadfordbrewer (@broadfordbrewer) July 6, 2016
Wales: "I want to wear the home kit"
Portugal: "Nah mate we're wearing it"
UEFA: FINE; NO ONE GETS IT. #WALPOR
-- Cameron Scheijde (@camscheijde) July 6, 2016
Wales Kit Man: So, we both normally wear red
Portugal Kit Man: Yes
WKM: So we could...
PKM:...both wear green?
Both: Great plan#WALPOR
-- innocent drinks (@innocent) July 6, 2016
Both Wales and Portugal wear a version of red as their 'home' kit - and Wales Online appears to have an answer to the unfortunate colour clash.
It writes: "For tonight's match Portugal are on the home side of the draw - meaning that, in normal circumstances, they would be able to play in their predominantly red home kit in Lyon.
"However, for this contest, the Portuguese first-strip has been deemed to be too close in darkness to Wales' charcoal and lime green away kit, and is considered to be a colour-clash."
Now you know.