Righthander Joshua Fields, the 20th overall pick in the 2008 draft, has agreed to terms with the Mariners. A baseball source said Fields will receive $1.75 million, splitting the difference between MLB’s $1.5 million recommendation for his draft slot and the $2 million he was seeking, pending the results of a physical he took on Saturday.

Fields helped Georgia reach the championship round of the College World Series last June, leading NCAA Division I with 18 saves. He has a mid-90s fastball and a hard downer curveball, and is expected to reach the majors quickly as a reliever. The Mariners, who are looking for a closer after trading J.J. Putz, will invite Fields to big league camp.

Though baseball’s signing deadline for draft picks was Aug. 15, Fields and the Mariners were allowed to continue negotiating because he was a senior who had exhausted his college eligibility. The Braves drafted him in the second round in 2007.