Chelsea may have won last night and secured qualification through to the next round of the Champions League, but that doesn't mean everything is rosy in west London all of a sudden.
The Blues' struggles are well known; they're off the pace in the Premier League - 17 off table toppers Leicester - yes, Leicester - to be precise.
Manager Jose Mourinho has been under increasing pressure but seems to be safe for now - an issue he spoke out about before the 2-0 win against Porto yesterday. He said: "I think that I did lots of good things in this club for the owner to know the quality I have, and the owner has shown me that belief twice: once when he brought me back to the club [in 2013]; the second time when he gave me a new contract for four years [in the summer]. I don’t think the owner is a person to change with the wind."
But while he may have the confidence of Roman Abramovich, and the result last night buys him a little time - even if the performance seemed laboured - there could possibly be a rift in his squad.
A couple weeks back, benched striker Diego Costa seemed to fling a bib in Mourinho's direction in a show of frustration over his lack of game-time.
Now Eden Hazard appears to have kicked out at his boss too. The Belgian, who is the reigning Player of the Year, was subbed off during the game at Stamford Bridge in place of Loic Remy.
As he approached the sideline and made his way to the subs bench, Mourinho went to greet him with a friendly slap - but Hazard wasn't interested and pushed his manager's hand away.
What does it mean? Who knows. It may have been that Hazard didn't know what was going on, he may be furious with his manager, he may have just been a bit peeved at being subbed. Check it out here:
In this video which shows the incident from a slightly different angle, the former Lille playmaker, who has found form in a more central striker role in the absence of Costa, seems to realise what he's done and grab Mourinho's hand afterwards.
So it could all be meaningless, or could hint at an underlying tension between the two, who have shared a strained relationship in the past.