Absolutely. If anyone looks up articles written about Bartolo Col?n's Dominican trainer Angle Presinal, he has a reputation as an expert on helping players recover from injuries. His methods are a well-guarded secret and his customers speak of him in reverential tones.
Whenever a trainer comes recommended with the mythical "guru" tag, rest assured there is something else going on. Herein lies the issue-the United States has some of the most advanced sports medicine procedures in the world, but some obscure Dominican trainer in Santo Domingo with no formal medical training is somehow a savant in this particular field, yet no one can or will explain exactly what he does or how he does it.
Presinal's past makes MLB wary about his present - MLB - ESPN
Presinal has been banned by MLB for suspected steroid trafficking, charges that stem back to 2001 and Presinal's affiliation with then-slugger Juan Gonzalez, but they cannot keep players from soliciting his services while in the DR.
As for Lance Armstrong, this may go down as the absolute biggest individual doping fraud in modern-day sport. But as of right now hardly any of the evidence against him has been made public. One thing we do know is his relationship with disgraced Italian doping doctor Michele Ferrari, who is bar none the most renown doping doctor and trainer in professional cycling. This is what R&B was referring to-the importance of masking a PED regimen.
In 2006, a year after he first retired form the sport, documents reveal payments to Ferrari from Armstrong totaling $465,000 dollars. That is the type of money that buys one not only the expertise needed to elude drug tests, but also client exclusivity. One of the stipulations of their professional relationship was a binding non-compete clause during the Tours Armstrong won. Ferrari was not allowed to work with any other Tour rider while on Armstrong's payroll.
The ability to disguise a PED program is just as crucial as the program itself, which is why doctors like Ferrari were so handsomely paid by his clients. This type of expertise costs MONEY, money that maybe some Dominican players don't feel like paying, which is probably why they have tested positive more often than any other nationality in MLB.