The latest Japanese All-Star pitcher, left-hander Yusei Kikuchi, is being posted. Which means all thirty teams have thirty days to negotiate with him.
He can agree, or not, to sign with the team of his choice. The Rangers have been actively scouting him and, like with Yu Darvish and Shohei Ohtani before him, are going to go all in on him.
Here is the article about it, and about him, from mlb.com.