Portsmouth are eager to claim a major scalp in the FA Cup last 64, but given Arsenal’s excellent form in the Premier League, a routine 3-0 away win is on the cards. The Pompey enter this tie on the back of an embarassing 5-0 defeat to Bristol City, but John Mousinhoâs side have at least been reliable at home, collecting 2.00 PPG and scoring in four of their last five at Fratton Park. Their attacking numbers at home (1.60 scored, 1.59 xG) suggest they can pose some problems, but defensive frailty remains a major issue: 0% clean sheets all season and 1.26 xGA at home.The Gunners, meanwhile, travel with excellent momentum, winning four of their last five and averaging 2.90 goals per match overall. Even with rotation expected from Mikel Arteta, the Gunnersâ squad depth is far superior, and their away metrics (2.00 PPG, 2.80 goals per game, 1.68 expected goals) point to a side that should control the match. Fit-again Brazil ace Gabriel Jesus is widely expected to lead the line for the Premier League leaders.