Luis Suarez was deemed surplus to requirements as Barcelona have looked to rejuvenate their squad, but the 33-year-old stole the show in a 6-1 victory on his Atletico Madrid debut.
Atleti were already 3-0 up against Granada in LaLiga by the time Suarez was introduced in the 70th minute at Wanda Metropolitano on Sunday, setting the stage for him to take the headlines.
In a remarkable cameo, Suarez scored twice, provided an assist and won a penalty, which was subsequently overturned by VAR.
Suarez, who scored with a brilliant header and then a cute first-time finish on the rebound after he had hit the post, managed four attempts in total, created one chance and completed 10 passes from his 16 touches, with a 70 per cent passing accuracy.
His tally of shots was the most of any player on either side, while his two efforts on target both resulted in goals. The assist, for fellow substitute Marcos Llorente, came with just his second touch.
The Uruguay striker's double makes him the first Atleti debutant to net a brace, while he is also the first player to both score and assist on his debut for the club in the 21st century.
With Suarez's star quality to call on, Diego Simeone's side could be well placed to mount a serious title challenge this term.
A penny for Lionel Messi's thoughts.