#3 Doni
Alexander Doni would be best known for being Roma's number one and one of the best goalkeepers in the Serie A in the late 2000s. He moved to Liverpool from the Italian capital on a free transfer, playing as the back-up to Pepe Reina. This was in the middle of Reina's impressive run of playing 183 consecutive Premier League games for Liverpool.
Doni ended up being the first goalkeeper since May 2007, not named Pepe Reina, to play a Premier League game for Liverpool in April 2012. He then got sent off against Blackburn, blowing his chance of playing the FA Cup semi-final at Wembley. The Brazilian made four appearances altogether, before going on temporary personal leave the following season.
Doni later revealed that he had suffered a heart attack during a routine medical in the summer of 2012. He left Liverpool in January 2013, returning to Brazil to play for Botafogo. The 'keeper retired in August 2013 due to heart problems. Today, his legacy is the career he carved in Italy alongside his caps for the Brazilian national team.
The former Roma and Liverpool stopper actually made a recommendation for Reds goalkeeping coach John Achterberg to check out a young Brazilian 'keeper back then. That young 'keeper was Alisson Becker. Yes, Liverpool's latest marquee signing was first on the Reds' radar thanks to Doni. It might be the one lasting legacy he has at Liverpool, for his playing career at Anfield is not likely to pop out in the memories of Kopites.