Streamlink MLB.TV?

[tvgplayer]

Can anybody help to use streamlink with MLB.TV? Thanks in advance!

C:\Users\Lenovo\Desktop>streamlink "hlsvariant://http://mlblive-akc.mlb.com/ls01
/mlbam/2017/03/10/MLB_GAME_VIDEO_SDNANA_HOME_20170310_1488914647371/master_wired
60.m3u8" best
[cli][info] Found matching plugin stream for URL hlsvariant://http://mlblive-akc
.mlb.com/ls01/mlbam/2017/03/10/MLB_GAME_VIDEO_SDNANA_HOME_20170310_1488914647371
/master_wired60.m3u8
[cli][info] Available streams: 720p_alt, 288p (worst), 360p, 504p, 540p, 720p (b
est)
[cli][info] Opening stream: 720p (hls)
[stream.hls][error] Failed to create decryptor: Unable to open URL: https://mlb-
ws-mf.media.mlb.com/pubajaxws/bamrest/MediaService2_0/op-generateKey/v-2.3?conte
ntId=1232305983&kid=20267431 (400 Client Error: Bad Request for url: https://mlb
-ws-mf.media.mlb.com/pubajaxws/bamrest/MediaService2_0/op-generateKey/v-2.3?cont
entId=1232305983&kid=20267431)
[cli][error] No data returned from stream
[cli][info] Opening stream: 720p_alt (hls)
[stream.hls][error] Failed to create decryptor: Unable to open URL: https://mlb-
ws-mf.media.mlb.com/pubajaxws/bamrest/MediaService2_0/op-generateKey/v-2.3?conte
ntId=1232305983&kid=20267431 (400 Client Error: Bad Request for url: https://mlb
-ws-mf.media.mlb.com/pubajaxws/bamrest/MediaService2_0/op-generateKey/v-2.3?cont
entId=1232305983&kid=20267431)
[cli][error] No data returned from stream
[cli][info] Closing currently open stream...