| 1. Petar relocated to Germany from Croatia in 2007, joining the U17 squad of FSV Frankfurt for a season before advancing to FSV Mainz U19. |
| 2. He enjoys traveling and discovering new locations around the globe. |
| 3. In 2010, he was elevated to Mainz's second team and subsequently to the senior squad in January 2011, playing under coach Thomas Tuchel. |
| 4. Throughout 2010 and 2011, he represented the Croatian U-21 national team in seven competitive matches. |
| 5. On 31 August 2011, he was loaned to St. Pauli in the second division, followed by a season-long loan to Dynamo Dresden a year later, returning to Mainz six months early in January 2013. |
| 6. Petar joined Chennaiyin FC of the Indian Super League on a one-year deal in July 2022, making his debut on 20 August 2022 against Army Red in a 2–2 draw. |
| 7. He scored his first two goals for Chennaiyin FC on 1 September 2022 against TRAU in the Durand Cup, leading his team to a 4-1 victory. |
| 8. On 19 May 2023, he transitioned to Jamshedpur FC on a free transfer. |
| 9. As of December 2025, Petar boasts 8.6k followers on Instagram. |
| 10. He was spotted with Bollywood actress Neha Sharma outside a fancy restaurant in Mumbai, sparking dating rumors after he was photographed holding her closely. |
