After making his comeback at the weekend, Tomas Rosicky is already injured again.
The Czech Republic midfielder had missed the entire season through injury, before featuring against Burnley in the FA Cup.
He played 19 minutes in the 2-1 victory at the weekend as the Gunners continued their defence of the trophy.
The Mail reported Rosicky picked up a thigh injury, and will be out for at least a month.
It has been a hugely frustrating season for the veteran, and that only looks set to continue.
Such setbacks after lengthy injuries are not uncommon, as the body struggles to re-adjust to the intensity of competitive matches.
At 35-years-old, Rosicky and Arsenal may both be wondering whether they continue together after this season, with the midfielder's contract set to expire.
Rosicky should keep faith that he still can return in a few weeks and potentially play and important role down the stretch, and even help their quest to win silverware - potentially bowing out on a high if this is indeed his final season.
Here is a look at how Arsenal fans reacted on Twitter to the news....
Thomas Rosicky injured again right after that 10 minutes against Burnley, FOR REAL?#afc— Mirnayil (@mirnayil218) January 31, 2016
Rosicky out for up to 6(!) weeks after being out for months already. #afc— G⚽️⚽️ner from Geneva (@Geneva_Gooner) January 31, 2016
Not surprised but with Rosicky injury, rather him than the others - he isn't the same genius anymore. Hes prob retiring end of season too— Kaashif (@Kaashif_92) January 31, 2016
Positive outlook on Rosicky injury is that it could mean more minutes for Iwobi.— Tony (@TTLe14) January 31, 2016
So confused why people are getting upset about this Jack/Rosicky injury news. it was completely expected— Rob (@BellerinFC) January 31, 2016