What is the fine-grained topic of the following text: Since Furniture Row Racing announced they would be shutting down at the end of the 2018 Monster Energy NASCAR Cup Series season, the dynamic duo of Martin Truex, Jr. and Cole Pearn have been rumored to be moving in house to Joe Gibbs Racing for 2019. Only return the topic.
Martin Truex, Jr. and Cole Pearn's rumored move to Joe Gibbs Racing