Recently, we looked at Portsmouth’s 2003-04 away kit, which was worn in almost all away games, even when a clash didn’t occur.
Obviously, given their tricolour kit, Pompey have often had to deal with socks-clashes against red teams – they wore all-blue against Liverpool in the 1992 FA Cup semi-final – and those red teams have had a similar problem.
When Portsmouth made it back to the top flight in 2003-04, Liverpool wore their white and black away kit at Fratton Park, but in each of the next two campaigns they wore white socks.
Having switched from Reebok to adidas in 2006, they continued this practice when they travelled to Portsmouth in April 2007, wearing a reversal of the home socks.
Five months later, they were back there for an early-season game.
The Premier League had updated its sleeve patches and number font, and there was also a change to the Liverpool kit layout in that the new away socks were worn.
In 2008-09, Liverpool again wore red at Portsmouth but the hosts were in all-blue so no change was needed, and then, in 2009-10, the season the south coast club were relegated, the Reds bookended their visits to Fratton Park by again wearing white shirts and black shorts.
To the best of our knowledge, they haven’t worn a mashup with their home shirts since 2007.