Every week presents a new test for Chelsea, but it seems like the bigger the test, the more likely they are to pass it. So when it comes to playing against a lower league side away in the FA Cup, this season at least, there’s always the chance of a Chelsea slip up.Yet a lot of that must come from a lack of motivation. If Chelsea’s players aren’t up for a league game in which they should start as favourites, it’s mostly because they know they aren’t going to have a good season in the league.But surely the Cup is a different beast for Chelsea. Surely the motivation should be there because the Cup still represents a chance to finish the season with some silverware and a place in Europe next season. The Champions League does too, but the FA Cup is considerably more winnable.With that in mind, perhaps we should be looking to this game as a litmus test for Chelsea. If they’re up for this game, then they could reasonably be seen as favourites for the trophy. They have a stellar squad that we must remember were champions last season, and if they’ve given up on the league then they won’t see the Cup games as a distraction like Manchester City and Arsenal, who feel they have bigger fish to fry.But we’re getting ahead of ourselves. Given Chelsea’s difficulties getting motivated for football games this season, even under Guus Hiddink, this is the sort of game that is ripe and receptive to what we’ve come to call cupsets. A Premier League team that look like they struggle to get themselves out of bed on matchdays against a lower league side fighting for their lives in the Championship is a recipe for disaster from the bigger side’s point of view. It’s a recipe for a classic from the point of view of everyone else.Could the final FA Cup tie of the weekend round off the schedule in style with a classic giant killing? Here are the teams who will decide the answer:

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