|By PAUL GOUGH
Manchester United and Manchester City are now duelling for favouritism to win this year's FA Cup following the shock eliminations of Liverpool, Tottenham, Aston Villa, QPR and Norwich by lower division clubs in the fourth round.
The few remaining big guns that reached the Round of 16 were kept apart in the fifth round draw made on Sunday, with United getting a home tie against Premier League battlers Reading, while City will host Championship side Leeds after the Yorkshire club knocked out Spurs.
But holders Chelsea - having barely managed to scrape a replay against League One team Brentford - will face another tricky trip in the fifth round to Championship side Middlesbrough, if they can see off the plucky Bees in a replay.
Meanwhile, Arsenal received a home draw against Championship side Blackburn, while five-time winners Everton were drawn away to League One team Oldham, who sensationally knocked out the Toffees' great rivals Liverpool on Sunday.
However, the other two fourth round giant killers Luton Town and MK Dons both managed to avoid the big boys and could yet end up in the quarter-finals.
Luton, who became the first non-League team to beat a top-flight outfit [Norwich] in the FA Cup for 24 years on the weekend, received a home draw against Championship side Millwall while League One team MK Dons got a home draw against Championship strugglers Barnsley.
But with so few big guns now left in this year's FA Cup, there is now a huge gap in betting between the five remaining heavyweights and the other 13 teams in overall betting.
|Man United to win the FA Cup at $3.85 at Betfair
||Everton to win the FA Cup at $8.60 at Betfair|
However the pair are the equal $3.50 favourites to win the 2013 FA Cup at sportsbet.com.au while at Centrebet it's 2011 winners City who are the narrow $3.50 favourites ahead of United at $3.60.
City were the early $6.20 favourites at Betfair before the third round - when the Premier League and Championship sides entered the competition - and then got into $4.80 after surviving a fourth-round trip to Stoke on Saturday before firming even further after the fifth-round draw.
United too have continued to firm, after opening up at $7.80 before the third round and then firming from $5.20 to $3.85 with Betfair after receiving a soft fifth-round draw.
Despite their poor showing at Brentford, Chelsea - winners of four of the past six FA Cups - remain third favourites at $5.90 at Betfair and $5.50 at both sportsbet.com.au and Centrebet.
Arsenal, searching for their first FA Cup and indeed first major trophy since 2005, are the fourth favourites at $7 with Betfair after firming in from $8.40 following a kind fifth-round draw.
But Everton - whose last FA Cup success in 1995 was also their most recent major trophy - are the only other team now left under double-figure odds to win this year's competition at $8.60.
Incredibly the next two teams in betting at Betfair are Premier League battlers Wigan at $55 and Championship high-flyers Leicester at $95, with the latter scheduled to host Wigan in the fifth round provided they win their home fourth-round replay against fellow Championship side Huddersfield.
All the remaining teams left in the FA Cup are all priced at odds of $120 or more.
* Note prices subject to change