The Los Angeles Dodgers want to fortify one of the league's best bullpens from last season and are interested in adding free-agent left-hander Brad Hand, a source told MLB Network's Jon Morosi.

Hand would likely fill the same role Blake Treinen did if the Dodgers decide not to re-sign Treinen, Morosi adds.

Treinen, a former All-Star closer, mainly pitched in the seventh and eighth innings for Los Angeles, including several meaningful outings - 18 of his 27 appearances included high-leverage situations.

The Toronto Blue Jays have also checked in on Hand, Morosi reports.

The Cleveland Indians declined Hand's $10-million option for 2021 in October. The veteran southpaw led MLB in saves and maintained impressive numbers (2.05 ERA, 1.37 FIP, 11.9 K/9) last season.

The 30-year-old has been one of baseball's top relievers since 2016, recording the ninth-most saves and seventh-most WAR among relief pitchers, according to FanGraphs.