阿森纳1月10日客战朴茨茅斯，足总杯取消重赛新规生效（足总杯取消重赛新规正式生效，阿森纳1月10日客场对阵朴茨茅斯）

Reviewing FA Cup Changes

I'm considering the FA Cup's recent scheduling changes that aim for exclusive weekends. In April 2024, it was announced that replays will be scrapped, and the fifth round will move back to weekends. But I remember that they removed replays across all rounds, while extra time still applies. There's also a shift to centralize FA Cup weekends and avoid midweek matches. This affects lower-league finances and fixture congestion, particularly for teams like Portsmouth. I need to clarify that the third round typically happens in early January.Preparing Match Preview

So Arsenal will be playing away at Fratton Park. I need to keep my preview simple, especially since I don't know the kickoff time yet. I should ask the user for their timezone since I can't confirm the date or time without guessing. It’ll be more helpful to explain the new rules, like no replay and potential for extra time or penalties, along with squad rotation and broadcast details. I think it’s a good idea to offer insights in Chinese with clear bullet points.Clarifying Substitution Rules

Many competitions allow an extra substitution, but since the five-substitution rule is now permanent, extra time subs aren’t always universal. In the FA Cup, it seems that a 6th sub was allowed for concussion or during extra time, but I shouldn't mix those. I’ll keep it safer by saying: "如果进入加时，可以使用剩余的换人名额；点球决胜." It’s important to mention that replays have been canceled. If the user needs exact kickoff times or broadcast info, I can try to fetch that if possible. Should I summarize match previews or starting lineups for them?