Everton v Oldham Athletic (replay)
Everton are now without a win in six FA Cup games against Oldham Athletic (D3 L3) and have not eliminated the Latics from the competition since February 1912.
The Toffees are looking to make the sixth round for the 28th time. Only Arsenal (36), Man Utd (33) and Tottenham (29) have reached the round more than 28 times.
Oldham, meanwhile, have only made the sixth round twice before (1990 and 1994); on both of those occasions they were ultimately eliminated by Manchester United in the semi-finals.
Having defeated Liverpool in the fourth round, Oldham are the first team to face both Merseyside giants in successive FA Cup ties since Tottenham Hotspur in 1995.
Matt Smith has scored three goals in his last two FA Cup appearances for Oldham, with those goals coming against Liverpool and Everton.
The Latics had more shots on target (five) than Everton (four) in the original tie.
Everton have only won three of their last seven home games in the FA Cup, drawing two and losing two.
David Moyes' side have been eliminated from the FA Cup on home soil by a lower league team in two of the last five seasons, with Oldham themselves one of the teams to win at Goodison Park (2008, Round Three).
Indeed, Oldham's last two away wins against top-flight sides in the FA Cup have both come at Goodison Park, although the victory prior to that 2008 win came way back in March 1913.
Excluding games when they were in the top-flight themselves, Oldham have kept just one clean sheet in 17 away FA Cup games against sides from the first tier, and that was in the 1-0 win at Everton in 2008. In the other 16, they have conceded a total of 58 goals (3.6 per game).
Middlesbrough v Chelsea
This will be the fourth meeting between Middlesbrough and Chelsea in the FA Cup proper; of the previous three ties, Chelsea have won two (including the 1997 final) and ‘Boro have won one.
In all competitions, Chelsea have won their last five against Middlesbrough without conceding a single goal (13 goals scored).
The Teesiders have only lost three of their last 22 FA Cup games at the Riverside Stadium (W15 D4).
Since their most recent relegation from the Premier League, ‘Boro have been eliminated from both of their FA Cup ties against top-flight sides, including a replay defeat to Sunderland last season.
Chelsea are unbeaten in 26 FA Cup games, though this run does include a penalty shootout defeat to Everton in February 2011.
The Londoners' record of 26 unbeaten FA Cup games is the longest ever run without defeat in the FA Cup (next best Blackburn Rovers on 23, ended in 1886).
Since their semi-final defeat to Liverpool in April 2006, the Blues have lost just one of 37 FA Cup games outright (W30 D6).
Chelsea have won seven and lost none of their last nine away games in the competition, scoring 22 and conceding just six.
The Blues have only lost one of their last 52 FA Cup games against lower ranked sides; losing 0-1 to Barnsley in March 2008.
