The Celtic man has been outstanding for the Bhoys this season.
The 31-year-old has been outstanding for the Hoops in a season which has seen him and a number of others raise their games under manager Brendan Rodgers.
The Celtic captain was his dominant self in Sunday's League Cup final over Aberdeen, but the Northern Irish manager has brought a different side out of Brown this season.
Rodgers, in his first job since being sacked by Liverpool 13 months ago, has occasionally played the Scotland international in a more advanced midfield role this term to great effect.
And Boyd says that Brown has it all at the moment, suggesting it is the best period of the skipper's career so far.
“At times he goes past players, a bit of flicks and tricks. He seems to have all at the moment," Boyd told Celtic TV.
“He is probably enjoying his best spell of football, you can certainly see that. He is enjoying [playing].
“I would say that he would say it has probably been his best spell so far.”
Moussa Dembele has got much of the plaudits but few can doubt that Brown has been brilliant for Celtic this season.
Rodgers's side sit eight points clear of second-placed Rangers, with two matches in hand, and they should a domestic double at the bare minimum this season.
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