Neymar has endured a hard week and it was clearly too much for him after the final whistle.
Lasmar sought to reassure Brazilian media anxious about Neymar's fitness after he limped out of a training session with a sore right ankle following Brazil's opening 1-1 draw with Switzerland last weekend.
"Neymar is fine. I'm a boy, he's a boy - a joyful boy", he said. "Cry as much as you want, only you know what you went through to be at the World Cup".
"He is like a little brother to me and I try to look out for him, but today I feel sad because he insulted me when I returned a ball to Costa Rica", Silva told the Brazilian press, as translated by MARCA.
The tempestuous forward was, in addition, caught several times on camera swearing at the referee in Portuguese.
The relief of getting on the scoresheet prompted an emotional outpouring from Neymar after the full-time whistle sounded at the Saint Petersburg Stadium and Silva can understand why his side's most important player was brought to tears.
Tite said he thought his superstar's tears were down to the huge pressure of leading the five-times world champions.
Brazil's next game is against Serbia on Wednesday.
The Dutch official, who was close to the action, pointed to the spot. Costa Rica are bottom of the standings and already out the tournament.