Suarez netted his first Liverpool goal since his return just before half-time against Sunderland and immediately moved to pull up his shirt.
Beneath it was a was a white t-shirt with a picture of his family and the message 'Los amo', which means 'I love them'.
Suarez had a second child - Benjamin - on Thursday with his childhood sweetheart Sofia Balbi. 'Welcome Benja' was printed above the picture.
They also have a three-year-old girl named Delfina.
Boss Brendan Rodgers earlier this week said Suarez was feeling "on top of the world" after becoming a dad for the second time.
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