Seven-time F1 champion Lewis Hamilton lost his pet dog, Roscoe, a week before the race in Singapore. Roscoe died on Sunday after battling pneumonia. Last week, Hamilton uploaded three images of himself by his dog's side in a clinic. He said Roscoe had caught pneumonia again after initially being diagnosed with it in April. The bulldog was sedated for a test, but his heart stopped, and he was ultimately placed in a coma. Roscoe was on life support for four days before the Ferrari driver decided to put down his companion.Hamilton returned to the paddock this weekend ahead of the Singapore GP. A video circulated on social media showing Hamilton greeting the fans and signing merchandise as he made his way through the paddock.Hamilton had made appearances in the F1 paddock with Roscoe in the past. The dog was a celebrity of sorts, with over 1.3 million followers on its Instagram account.Lewis Hamilton ‘overwhelmed’ by the support and messages after Roscoe's deathAs Lewis Hamilton mourned the death of his dog, people from around the globe, including James Vowles, FIA, George Russell and Charles Leclerc, offered sympathy and support to the seven-time champion. Hamilton said the response he received was overwhelming.“Lots of messages," he said (via F1 reporter Adam Cooper). "Quite overwhelming to be honest, to see just how many people Roscoe touched around the world. And really heart warming to receive. I've not been able to reply to everybody. It was the most important thing in my life, so it was a very difficult experience.“And I know so many people in the world have gone through it, and know what it's like to have a pet that's just that gives you such amazing love, and it's an amazing experience. I'm really just looking forward to now just getting back in the car and doing what I love doing here."Adam Cooper @adamcooperF1LINK'@LewisHamilton on Roscoe: "Lots of messages. Quite overwhelming to be honest, to see just how many people Roscoe touched around the world. And really heart warming to receive. I've not been able to reply to everybody. It was the most important thing in my life, so it was a veryHamilton is preparing for Sunday's Singapore GP, where he is a four-time winner (2009, 2014, 2017, 2018).